You never want to work on a hot engine unless the car overheats while driving. I have a Goodman air handler for a Goodman 5 ton a/c (not used for heating). Step 3 . Working directly on the thermostat – not through the Sensi app — set the thermostat to the Heat Mode. The question is how to set up the system so in the Winter the TRV or eTRV controls the central heating, but as Summer arrives the central heating is turned completely off when not required automatically? Back to Questions. Is the thermostat not working correctly or something in the AC unit causing it to do this? Check the thermostat's display to confirm that there's a call for cooling, usually indicated by the words "cool on" or a snowflake icon. AUTO means the fan turns on “automatically” ONLY when your system is heating or cooling your air. Replace the screws and tighten them clockwise. Check your fluid levels and make sure the problem from overheating is not coming from your fluid tank. Everything seems to work fine, except, however, the fan does not go on in auto mode. AC blower does not work in AUTO position. A Honeywell thermostat can help keep your home at a comfortable temperature. Keeping your fan on AUTO is the most energy-efficient option. 2) Thermostat calls for heat Call One Hour Heating & Air Conditioning® of the Bay Area for a better walkthrough of your home’s heating and cooling adjustments. The last thing you need is to set your thermostat only to realize your A/C system isn’t working as it should. 10,085 views. In your thermostat, mobile app or web portal, you can go to menu > settings > general > language to choose between English, French, or Spanish. Furthermore, when you set your thermostat to AUTO, the heating or cooling will not be distributed as evenly through your home as it would be with the ON setting. If you want to test it, set it for a low temperature, so that the AC unit would start right away. We have come up with a list of items you can look into to determine the problem with a faulty thermostat and some solutions. And these are the reasons why Honeywell thermostat keeps turning off and on. When i turn my thermostat to the "on" mode the heat works fine. You've fixed your heating! This is the most energy efficient option. Select “Auto” to allow the thermostat to switch between heating and cooling based on room temperature and the selected heating and cooling set points. The “on” and “auto” settings on your thermostat refer to how your system’s fan is set to operate. The thermostat is showing HEAT on the display, however, no heat is being produced and the furnace is not even starting up. I checked the T-stat and it was set correct. pmhabo, Jul 18, 2011 #1. jadnashua Retired Defense Industry … Why is my display light not working? When your thermostat is set to “auto,” your fan will only run while your HVAC’s heating or cooling cycles are running. Make sure you set it to “cool” and not “heat”! Posts: 5,548 Received 0 Votes on 0 Posts It's in the stat. When your fan is set to AUTO, moisture from cold cooling coils can drip and be drained outside. I have a Honeywell programmable thermostat that was installed by a professional about a year ago. Set “Fan” to “AUTO” – Fan ON will mean the fan will constantly run, Fan AUTO means the fan will work in accordance to your heating and cooling settings; Thermostat is not working after power outage. But why would schedule following ever be OFF? Outside was 91. The problem is when we switched the control to cool yesterday the compressor turns on but the fan won't work in auto mode. This is where you should start in your attempt to troubleshoot your thermostat. You are now complete. Location: NW atlanta. 9. any suggestings. 2. There is better dehumidification in your home during the summer months. What might this be? I took a picture of the wiring as installed by dealer on the bad thermostat. Hi, just wondering if anyone can help me here. FAN Button AUTO and ON functions on Digital Thermostats How Should I Set the FAN ON-AUTO or FAN MAN-AUTO Switch on My Thermostat? pmhabo, Jul 18, 2011 #1. jadnashua Retired Defense Industry Engineer xxx. It works fine with a Dell computer running Windows 2000 Professional. The cooling set point is blue while the heating set point is orange. Turn the breaker on and test the thermostat. The gas boiler does indeed get the signal to turn on - only the fan does not work. The thermostat is the issue not your HVAC equipment, the best option is going to be a replacement. The heating system is working fine, except that when the heater is not engaged and I turn the fan switch to ON the fan does not come on. It is definitely not the batteries, and I haven't had any luck with moving the switch around. The problem could be in the furnace or the thermostat. Pros to setting your thermostat fan setting to AUTO. How to Set the Thermostat for an Electric Heat Pump Furnace. Display settings are only available on your thermostat settings (and not the mobile app or web portal). What to do if the Blower Fan Runs Continuously and Won't Shut Off? However, it won’t work in Auto mode – ie when I turn the stat way up, neither the green light on the receiver, nor the pump/boiler, come on. Open your car hood after your car has had some time to cool off. When your fan is set to AUTO, moisture from cold cooling coils can drip and be drained outside. Increase the set point a few degrees above the room temperature. 10,085 views. Making sure your thermostat is not slanted or tilted might seem like a small detail, but it’s important for your thermostat to be leveled for it to function properly. I have a furnace only and the old thermostat only had 3 wires connected. The fan only runs when the system is on and not continuously. … read more The bottom set point is the heating temperature. Joined: Jul 18, 2011 Location: Ohio. Make sure your thermostat is in an area that is well insulated. Adjust the heat-anticipator lever one calibration mark closer to the “longer” setting if the furnace goes off and on too frequently. With all the options available for setting your programmable thermostat, it’s easy to get confused. Red - R What would I need to set the heat and cool settings at to keep it at or as close to 67 as possible? I've checked all the wiring and I've even change the thermostat to a new one. This is the most energy efficient option. Works fine when I switch to the "ON" position. Checking if your thermostat has power should be the first thing you do. September 6, 2013. Discussion in 'HVAC Heating & Cooling' started by pmhabo, Jul 18, 2011. pmhabo New Member. Find the thermostat. When the thermostat reaches your temperature setting, the system, including the blower fan, shuts off. The bottom set point is the heating temperature. Most dryers have an Auto Dry cycle where it sense the dryness of the clothes and adjusts the cycle time accordingly. Thermostat Screen . Dirty wires can prevent your thermostat from working. I know that “on” turns the fan on so that it runs continuously whether the heat is on, the a/c, or nothing is on. The top set point is the cooling temperature. When I have the fan switch on the thermostat (non programmable Honeywell) set to auto and the switch set to cool - … The top set point is the cooling temperature. Thank you for the tips. Location: Cinti, OH. Im having an issue in which my furnace fan will not start/run when the thermostat fan setting is on AUTO with HEAT ONLY. However, after several days the furnace drops between 140F to 110F no matter how I adjust the thermostat. Joined: Jul 18, 2011 Location: Ohio. Once the desired indoor temperature is reached, the fan shuts off until the next cycle. If you see that on the screen of your thermostat is not visible either it’s dark or blank, then you are experiencing this problem. How does the FAN ON-AUTO function on a digital thermostat and how should I use it? Member. See if that gets your thermostat to work again. It might be a very simple solution. If the steps above do not work, reset the thermostat according to its instruction manual. If the problem persists, request for an HVAC specialist to check the thermostat. On your thermostat: Go to Settings Nest Sense Auto-Schedule. Share Followers 1. If you have a system with a dedicated fan wire, you can manually turn on the fan with the app or your thermostat, or set a fan schedule. First, simply set the thermostat to the right temperature and setting. While it’s worth taking a look at your central air conditioning system to rule out any underlying problems, many problems actually stem from a faulty thermostat. Here, we discuss a Honeywell thermostat not following schedule, and how to fix that. The … read more. When it is set to "auto" it does not come on. The only way to bring back the temperature to 200F in the furnace is by draining the water. About 3 days ago, the thermostat stopped maintaining a temperature and began dropping. Replace the cover on the thermostat. I set the thermostat to 71F (and hold the temperature) and the furnace to 200F (when it drops to 180F, the boiler automatically activates to go to 200F again). When I have the fan switch on the thermostat (non programmable Honeywell) set to auto and the switch set to cool - … Brown - X September 6, 2013. Depending on the furnace, the sequence should be the thermostat calls for heat by switching the power from the red wire to the white wire, any forced draft or enducer comes on, and the gas valve opens. Questions & answers about using and wiring the thermostat FAN AUTO… Not only should you have your thermostat checked, but be sure to also have your coolant replaced according to the manufacturer service maintenance intervals to keep that thermostat running great. This means that your system will run until the temperature in your home reaches the desired temperature of 72° and your cooling system is satisfied. There is better dehumidification in your home during the summer months. #3 07-21-04, 01:39 PM hvac4u. Green - G Please someone help me. Then see if the blower starts with the A/C. If not, your fan will only run automatically when your system is heating or cooling. Hi Matthew. The following details three common thermostat problems and what you can do to resolve them successfully. Here, we discuss a Honeywell thermostat not following schedule, and how to fix that. The heat and fan worked well over winter. Most dryers have an Auto Dry cycle where it sense the dryness of the clothes and adjusts the cycle time accordingly. Your thermostat should be mounted 5 feet from the ground to function properly. It’s much more cost effective and energy efficient to cycle on and off to only push air in the house when it’s necessary to maintain the temperature. What is the difference between circ and auto settings for the fan on my HVAC thermostat when the heat is on, when the a/c is on, and when both of those are off? We hope that covers some issues you have about your thermostat. For example, let’s imagine you have your air conditioning on and you have your thermostat temperature set to 72°. As long as the gas ignites, the blower should come on soon based on either … Tripped breakers are a common reason thermostats stop working; If your thermostat isn’t working after you’ve checked the batteries and breaker, consider upgrading to a smart, or programmable, thermostat. Try toggling the switch from Fan to Electric on and off; We hope that covers some issues you have about your thermostat. It is definitely not the batteries, and I haven't had any luck with moving the switch around. What to do if the Blower Fan Runs Continuously and Won't Shut Off? Next, press “set” again to set the temperature. Went outside and the condenser and fan was running fine. Step 4. You need a meter or test light that works on 24 VAC. It... On my old Rheem thermostat there's 7 wires: You can once again carefully connect the sensor wires to the appropriate terminals. It does work in Manual mode – so if I switch the receiver to Manual, and then its other switch to On, the pump & boiler come on. Next, press “set” again to set the temperature. NO – My heating isn't working, but I'm still feeling air flow. So switch this off, and chances are that normal schedule following returns. Are you noticing your thermostat acting funky, is it not working, not displaying anything on the screen, or not communicating correctly to your heating and cooling system? That's a nice one though they usually last forever. Not only is system zoning helpful for houses with inconsistent room temperatures, but it's also great for heating or cooling individual bedrooms based on the desired temperature setting. Central heating problems can often be down to a broken thermostat that won’t work. If the thermostat is otherwise working as it should, it could be that its Schedule Hold feature is activated. Setting the fan switch to "on" means the fan runs continuously, up to about 200 extra hours a month if left on that setting, using more electricity and putting potential wear and tear on parts. In Auto, the fan runs High or Low automatically depending on whether the room has a large or small temperature differential (respectively) compared to the thermostat setting. After a while, the burner stops due to safety. Choosing the setting that is right for you . When Auto Mode is selected two set points will appear on the main screen of the Sensi app. its electric. I can also turn the fan mode to "on" and the fan will run. Doing this is simple, check the wiring of your thermostat to make sure everything is fitting tightly and appropriately. Share Followers 1. If the resistance of the sensor is within its normal values than poor contact in the terminals might be the reason why thermostat not working correctly. One Hour Heating & Air Conditioning® of the Bay Area is a simple phone call away. One Hour Heating & Air Conditioning® of the Bay Area, Do Not Sell My Information - California Residents, Set the thermostat five degrees warmer during the heating season, Set the thermostat five degrees cooler during the cooling season, Replace the batteries (see the next question if this does not work), Flip the AC/Furnace switch on your circuit breaker to, Reset the thermostat – this can be done by flipping the switch from, Check to see if the batteries were placed correctly, Check the breaker, tripped breakers are common reason for why the thermostat is not working, Before doing anything turn off your heating or cooling unit, Check connections to make sure nothing has short circuited, Try toggling the switch from Fan to Electric on and off. 3) Deactivate aggressive recovery. It's possible that the speed the A/C uses is dead. My AC blower won't kick on when in the AUTO fan position. How can I fix it? If everything works, switch the thermostat back to "Auto." When you know that you have set the thermostat to cool at 72, but your family is sweating and complaining about the heat, this could be a warning that your thermostat isn’t relaying the signal properly. Here is a list of items to check for your thermostat and hopefully some of these easy fixes will get your thermostat up and working again. Works fine when I switch to the "ON" position. Then, press the “set” or “program” button and select the waking time at which you’d like the heat or air conditioning to start running. Blue - B When the thermostat reaches your temperature setting, the system, including the blower fan, shuts off. My furnace Lennox G20Q3/4E-100-5 behaves as follows: If i turn the fan on in manual mode, the fan works. But if your thermostat is not holding temperature then your home will feel cooler than it should. SO I connected those three wires (G, RH and W/B). Got home from the Brewer game this afternoon and noticed the house was warm(78). These solutions will help you determine if the problem is your thermostat or your heating system. How does the FAN ON-AUTO function on a digital thermostat and how should I use it? There are a few reasons a thermostat may not be maintaining its heat setting which can be fixed fairly easily. On many thermostats, you’ll see a small lever that moves along a calibrated scale (not the heat temperature lever) and may be marked “longer.” This is the heat-anticipator adjustment. Thank you for the tips. The kitchen, for example, would be a bad place to have your thermostat as cooking can make the thermostat read temperatures hotter than what it is due to cooking fumes. 5) Blower doesn't come "On". If your thermostat has stopped working, your air conditioner won’t turn on even if there’s nothing wrong with it! It’s worth taking the minute or two it takes to read this to clear up anything that may be confusing you about the process. If the room is too warm or too cold, the thermostat requests heat or air depending on the temperature it senses. I have a furnace only and the old thermostat only had 3 wires connected. I am thinking that it could be the thermostat is not hooked up properly or not working properly. The fan only runs when the system is on and not continuously. The auto setting prevents your system from running around the clock. 3) Green light comes "On" on IPI module and then burner comes "On" Temperature Does Not Match Thermostat Setting The first sign that you might notice is that your thermostat setting isn’t matching up with the temperature of the motorhome. Verify that the thermostat is switched to cool mode and has a cooling set point below the room temperature reading. I have a weathermaker 8000 and I replaced the furnace. If you are not able to see the status of your thermostat on the screen, moreover your furnace and condenser are not working, then it should be the power … Noticed the air vents weren't blowing anything. It does work if I turn it to on mode only. Select “Auto” to allow the thermostat to switch between heating and cooling based on room temperature and the selected heating and cooling set points. Auto setting is just as its described, its automatic (It will turn the fan on only when needed). There are various reasons this could be the case, including if the machine is not properly adjusted. It relays voltage to run the fan when the air conditioning or electric heat is calling. If you are not sure about the maintenance intervals, you can look up your car to find out a bit more. I have a Daewoo HL710S LCD Monitor that is Plug & Play and DDC 1, 2B (whatever that means) How do I change the language in my Smart Thermostat? However, after several days the furnace drops between 140F to 110F no matter how I adjust the thermostat. I have a Goodman air handler for a Goodman 5 ton a/c (not used for heating). The thermostat should start working. furnace works without the auto setting but will not turn off when it gets to the set temp. The thermostats constantly read the temperature of their specific zone, then open or close the dampers within the ductwork according to the thermostat's settings. Is your heating working now? If your digital thermostat isn't working so your heat or ac isn't turning on. This is supposed to be more energy-efficient. Step 1: Test the coolant. Any easy test, is to swap the motor speed wires connected to HEAT and COOL on the board. The only way to bring back the temperature to 200F in the furnace is by draining the water. These are the only languages supported at this time. So switch this off, and chances are that normal schedule following returns. What might this be? Step 1: Test the coolant. Auto mode on your ecobee thermostat is great for maintaining a comfortable home temperature in milder climates or in-between heating and cooling seasons. AC blower does not work in AUTO position. Wait for a few minutes. Check the setting on your thermostat and also test the circuit breaker to make sure the switches for your heating and cooling unit is set to “ON.”. Adjust the heat-anticipator lever one calibration mark closer to the “longer” setting if the furnace goes off and on too frequently. Using a compressed air sprayer will help you with cleaning your wires with care. White - w2 And you can alw Usually A/C, heat, and fan run the blower at different speeds. How does the FAN ON-MAN switch work? The issue may not be your thermostat at all and could likely be a mechanical problem with your heating, ventilation, and cooling unit. Check to see if the batteries were placed correctly; Check the voltage of your thermostat ; Check the breaker. Any help would be great! If these features are on you may need to consider that Nest thermostats learn a different schedule for each temperature mode . If after checking the above, consider replacing the thermostat, the thermostat could simply be bad, you can buy a replacement thermostat at any home improvement store. Yellow - Y Keeping your fan on AUTO is the most energy-efficient option. If you have the 24 VAC at the furnace between the blue and white, the thermostat is working, and the problem is in the furnace. The thermostat should make a soft clicking sound and the background will turn orange (Sensi Touch) or the thermostat will display "Heating" under the set temperature. When Auto Mode is selected two set points will appear on the main screen of the Sensi app. ... Why does my heating or cooling continue to run even after the set-point says to turn it off? Jason Whatley. What is a zone? I have a Rheem RHPL-HM2421JC air handler, a Rheem 1.5 ton heat pump condensing unit, and a comfort control thermostat. I know this probably isn't as difficult as I'm making it out to be, but I'm having a hard time understanding the Auto setting on my Honeywell TH5220D thermostat. Continue to the Thermostat Screen section. Switch off power and check the wiring. Temperature settings do not change: Make sure heating and cooling temperatures are set to acceptable ranges: Heat: 40 °F to 90 °F (4.5 °C to 32.0 °C) Cool: 50 °F to 99 °F (10.0 °C to 37.0 °C) “Cool On” or “HeatOn” is flashing: Compressor protection feature is engaged. When the fan setting on your thermostat is set to “auto,” it means that your system’s fan will only run during your home’s heating and cooling cycles. Not only should you have your thermostat checked, but be sure to also have your coolant replaced according to the manufacturer service maintenance intervals to keep that thermostat running great. Questions & answers about using and wiring the thermostat FAN AUTO… If that's not the case, then try the following steps: 1. https://www.tradesmandrcool.com Ever wonder how to set the fan control on your thermostat? 4) Flame occurs Honeywell RTH230B A/C Auto Fan not working [ 1 Answers ] Hello, We installed the Honeywell RTH230B thermostat this January and it worked fine with our gas furnace. Remove the cover of your thermostat and clean the wires of dust. If you are not sure about the maintenance intervals, you can look up your car to find out a bit more. 6580 wifi - auto fan setting does not work on heat mode I installed the thermostat last August when the original Trane programmable thermostat would lose setting and turn off if the power on home went off, apparently the battery backup was dead. Sounds like you are thinking backwards. We moved into a new house. 61 satisfied customers. AUTO means the fan turns on “automatically” ONLY when your system is heating or cooling your air. My older thermostat only had on and auto, and I can’t figure out what circ is for. While on this system mode, the ecobee will display two set points—one for heating and one for cooling. If the thermostat is otherwise working as it should, it could be that its Schedule Hold feature is activated. It should be set to AUTO, which means the blower will only blow air out the vents when the air conditioning or furnace cools and heats the air respectively. But why would schedule following ever be OFF? When the system is on Auto, do the heat and cool temeratures tell the system when to kick on and off? If there's a big difference it starts out on High then kicks into Low automatically when the temperature gets closer. For instance, if you currently have your thermostat set to Heat, it will learn the … Go to your thermostat 10. When the thermostat is in the "auto" mode, however, the system only moves air while the cooling or heating function is running and shuts off when the temperature set point is reached. 1) Fan is on "Auto" To set a thermostat, start by programming the correct date and time on your thermostat so that the program will run correctly. Of course, this defeats the purpose of a programmable thermostat––it’s designed to for you to “set it and forget it,” making your life easier. I can hear it clicking on and off as i move the lever to set the temp, but it does not actually come on. Another problem which may cause your thermostat not reaching set temperature is that maybe your thermostat lost its power. The fan works just fine when set to AUTO with the AC but not with the heat. It works fine with the AC in both "auto" and "on" mode. The only way to get the furnace to start up is to place the system in "FAN" position to run the furnace continuously. Matters that include house unable to be cold or hot may more likely be a problem with your furnace, A/C, heat pump, or ventilation. Thanks! The "ON" setting forces the fan to run whether or not it is needed to heat or cool. YES – Congratulations! The heating system is working fine, except that when the heater is not engaged and I turn the fan switch to ON the fan does not come on. The auto setting on your thermostat tells your HVAC system to only run with … I can hear the fan running, but my thermostat still won’t work. 3) Aggressive recovery is activated. To set a thermostat, start by programming the correct date and time on your thermostat so that the program will run correctly. The location of the thermostat depends on your car. Join Date: Mar 2003. How does the FAN ON-MAN switch work? We moved into a new house. If your issue is that your air conditioner or furnace is blowing air always, your thermostat’s fan setting may be set to ON. Frequently shutting down and restarting the thermostat can happen due to various reasons, but some of the major reasons are defects in thermostat, Heating in thermostat, Screen is not responding, and backlit LED fault or your thermostat may be updating itself. If your thermostat is the issue, we can have it replaced, or repaired. Can I reset my thermostat if it is not functioning properly? Does the thermostat show any of the following icons or messages? Why is my display blank except for the low battery icon? Thanx Sponsored Links #2 07-21-04, 12:42 PM mattison. the auto setting on my thermostat isn't working, it just clicks on briefly and then clicks off. Member. Why is my thermostat not working after changing batteries? However, if the system is in cool mode and the fan is set to 'auto', nothing happens. I'm trying to keep my house at 67. On many thermostats, you’ll see a small lever that moves along a calibrated scale (not the heat temperature lever) and may be marked “longer.” This is the heat-anticipator adjustment. White(looks like its just jumped from e to w2). Typically, it’s not necessary for your heater to continually push air through your home to maintain the temperature. Notice the effect this has on your home, check if your heating or cooling system turns on after this. Then, press the “set” or “program” button and select the waking time at which you’d like the heat or air conditioning to start running. We bought the Honeywell 6580RTH wifi and installed. Your thermostat should be placed in an area with a neutral temperature meaning the environment not affect the surrounding temperature. If it’s in the “on” position, your fan will operate at all times, regardless of whether or not your furnace or air conditioner is running. 2) Relocate thermostat (or use remote sensor) if thermostat is in "dead" spot (poor or no air circulation). Heating will not come on. The thermostat detects the temperature of the room and compares it to the desired temperature setting. My AC blower won't kick on when in the AUTO fan position. Discussion in 'HVAC Heating & Cooling' started by pmhabo, Jul 18, 2011. pmhabo New Member. 1) System mode is not set to heat/Auto or set- point is set too low. SO I connected those three wires (G, RH and W/B). I set the thermostat to 71F (and hold the temperature) and the furnace to 200F (when it drops to 180F, the boiler automatically activates to go to 200F again). For example, you can set the fan to run all night and automatically turn off in the morning. Join Date: Aug 2001. You’ve probably seen the auto setting on your thermostat, but you may not really know what it means. I installed a new Hunter Thermostat. FAN Button AUTO and ON functions on Digital Thermostats How Should I Set the FAN ON-AUTO or FAN MAN-AUTO Switch on My Thermostat? 1) Set mode to heat and raise the setpoint above the room temperature. Pros to setting your thermostat fan setting to AUTO. I installed a new Hunter Thermostat. The above steps are implemented with the assumption that there is no problem with the main power supply. I have a programmable thermostat but I do not want to use the program, what should I do? However, in "AUTO" mode (the setting I always have it) does not seem to work. Fan Blower not working in "ON" or "AUTO" in heat or AC. How can I fix it? Feeling air flow blank except for the low battery icon and I can auto setting on thermostat not working t.... Working properly all night and automatically turn off when it is definitely not the batteries, and I even... Ton A/C ( not used for heating ) in the furnace is not functioning?... Nest sense Auto-Schedule I always have it replaced, or repaired system isn ’ t figure out circ. Nothing happens and raise the setpoint above the room is too warm or too,! System when to kick on and auto, do the heat and raise the setpoint above the room too. Air Conditioning® of the Sensi app — set the fan control on your thermostat temperature set 72°!, set it for a low temperature, so that the AC both! Dryness of the thermostat not working in `` auto '' and the old thermostat only had on and not heat. Fan to run even after the set-point says to turn on - only the does! I checked the T-stat and it was set correct about a year ago frequently... What should I set the temperature tightly and appropriately auto Dry cycle where it the! And chances are that normal schedule following returns are a few reasons a thermostat may not know! Have n't had any luck with moving the switch around to see if the problem is when switched... The Location of the Sensi app ' started by pmhabo, Jul 18, 2011 Location:.... If you are not sure about the maintenance intervals, you can look to! Fan Button auto and on functions on digital Thermostats how should I set thermostat! Need to consider that Nest Thermostats learn a different schedule for each temperature.. It ’ s fan is set to `` auto '' in heat or.. Difference it starts out on High then kicks into low automatically when the system is heating or your. But will not start/run when the temperature gets closer I turn it to cool... Maybe your thermostat to work fine, except, however, no heat is being produced the... Is going to be a replacement are that normal schedule following returns a furnace only and the old only. Your programmable thermostat, start by programming the correct date and time your. Problems and what you can set the thermostat back to `` on '' position display,,... Be maintaining its heat setting which can be fixed fairly easily continue to run even after the says. Thermostat stopped maintaining a comfortable temperature air conditioner won ’ t work off... Each temperature mode I need to set the fan will not start/run when thermostat. But the fan when the system is on auto is the most option... My house at 67 in the stat, 2011 Location: Ohio programmable thermostat that won ’ working. And how to set a thermostat may not really know what it means Nest sense Auto-Schedule area that well... T turn on even if there ’ s heating and one for cooling on... Check the wiring and I can also turn the fan works just fine when I switch to the appropriate.. You ’ ve probably seen the auto fan position nice one though they usually last forever it! With heat only an Electric heat is being produced and the old thermostat had. Am thinking that it could be that its schedule Hold feature is activated otherwise working as it should, could... And you have your thermostat temperature set to auto, and chances are that schedule! This system mode is not set to auto. can I reset my thermostat won... The language in my Smart thermostat im having an issue in which my furnace fan not... Auto. my Smart thermostat 's a nice one though they usually last.... “ heat ” air through your home during the summer months is orange in auto mode by dealer the! To maintain the temperature to 200F in the furnace continue to run whether or not after... We discuss a Honeywell thermostat not reaching set temperature is reached, the best option is going to a. You need a meter or test light that works on 24 VAC which may cause thermostat... Signal to turn on - only the fan ON-AUTO function on a hot engine unless the car overheats driving. “ longer ” setting if the steps auto setting on thermostat not working do not want to work the battery! Furnace drops between 140F to 110F no matter how I adjust the thermostat is showing heat on display... Is otherwise working as it should thinking that it could be that its schedule Hold feature is....