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Is the heat pump damaged? The consent submitted will only be used for data processing originating from this website. 4 Reasons Why Your Auxiliary Heat is ON But No Heat. This device is designed to measure the temperature of the air flowing out of the vents in your home. Another simple way to check whether you have a heat pump or not is to check your thermostat wiring. Solution: Theres only one solution here regular maintenance. You have a conventional system and not a heat pump. I am not having consistent heat with my nest. Thanks! New install of Nest Learning Thermostat and we are getting cold air blowing. To transfer heat from one place to another, the refrigerant flows back and forth from the indoor unit (your air handler) to the heat pump condenser (your outdoor unit). However, you cant feel the heat. You also need to check the wiring to make sure that everything is working currently. The reasons why your thermostat is blowing cold air on heat setting include incorrect thermostat wiring, misconfigured reverse valve (if you have a heat pump system.) I moved it back to B and still no heat. This type of system uses electricity and refrigerant to create a comfortable temperature within your home. If there is a wire in the O/B terminal, then you probably have a heat pump. Now try to feel the air that is coming out of your vents. If you think that the wires are configured incorrectly, contact a. Furnace Blowing Cold Air Because Of No Fire Your furnace not blowing hot air could be due to the ignition failing to start. Click Continue, then select heat pump. Common Problems With Nest Thermostat And How To Troubleshoot? Making sure that your Nest thermostat doesnt switch to AUX heat is all about making the right settings. Read also: Honeywell Thermostat Blowing Cold Air on Heat Setting [Fixed]. The only differences that I see are that: Nest thinks the heat pump O/B wire is orange when it is actually brown, Nest thinks the aux heat W2 wire is brown when it is actually white. Aux Heat Blowing Cold w/ Nest - Old Thermostat Works Fine : r/Nest - Reddit Your heat pump will defer to aux heat on its own when the temperature is too cold outside for the unit to warm your home to the desired temperature. 2023 HVAC.com a Magenta Technologies LLC Company, All Rights Reserved, Frozen condensate drain: how to fix it yourself, https://www.hvac.com/troubleshooting/frozen-condensate-drain/, Should you cover roof vents in the winter? I have a cable connected to the Y (I dont have a clue of what that is for) but I am freezing and the aire wont blow warm.. Air is blowing cold on heat mode, does someone have a clue? I am not home right now to send a pic but I made sure to set it to B like it was on the old thermostat. You can also replace damaged filters. If it is set to ON, your fan will constantly blow out air, even when your furnace isn't heating it. I see the Yellow, Green, Brown, White, Red, and Blue wires are coming from the thermostat (it seems that orange and black are un-used). Sometimes, the Heat Pump Balance option may be missing in Nest Sense. If you are dealing with a nest thermostat that is blowing cold air on heat mode, then this is a perfect guide for you. Both auxiliary and emergency heat should be temporary settings. It will still work properly but you wont be able to use and configure the Heat Pump Balance feature. When the temperature inside your home drops three or more degrees below your set limit, your thermostat will kickstart the auxiliary heat. Pros, cons & considerations, https://www.hvac.com/troubleshooting/should-you-cover-roof-vents-in-the-winter/. Why Is My Furnace Blowing Cold Air? How To Fix [With Pictures]