Mark Henley. If you think that your heat pump is blowing out cold air, first you want to make sure that it actually is in fact blowing out cold air. Furnace not working. The Sensi Thermostat is not able to control the 2nd thermostat. If your pilot light continues to go out, your thermostat has power but doesn’t seem to work properly, or you can’t locate the reason for why your furnace is blowing cold air, it is time to call the professionals to help you get your warm air back on and working. 4 Recommended Answers 76 Replies 0 Upvotes. or Request Estimate. Proudly serving Columbus, Ohio since 1983. The pump is not leaking or making noise. Any Heat Pump Repair. Troubleshooting a Heater Blowing Cold Air. YES – Continue to the next step. Go to your thermostat 10. This problem could be mainly because of the wrong wiring connection. If you cannot access the site, check your smart phone or tablet Wi-Fi settings. I recently replaced the Emerson 1F97-12377 Programmable Thermostat with an Emerson Sensi Thermostat. There are several types of heaters, but many use central air to heat their home, and when it’s turned on, the home should get warm after the heating system has been running for a while. 2. The temperature drops to 68 degrees inside. The new thermostat works on Zone 1, but the Zone 2 2nd floor thermostat is no longer able to open the dampers to bring heat to the 2nd Floor. The only wires my husband removed before I took photo was the red and green. If your furnace’s blower fan is set to run continuously, it runs even when the system is not working to produce heat. Do this: Ensure your thermostat’s fan setting is set to AUTO, not ON. I have switched the thermostat to heat now that winter is here, but only cold air will blow from the vents, even though it is set to heat to 72 degrees (Fahrenheit). Active 3 years, 7 months ago. I went to Home Depot and bought the closest model to the one I had. Brice Heat Pump Repair: Heat Pump Blowing Cold Air in Winter. Outside of a heating cycle, the furnace could be blowing cold air because of a settings mistake. The furnace no longer blows hot air. Your cellular data service may be interrupted, off, or out of range. Thermostat: A Furnace Blowing Cold Air Could be Due to Your Thermostat. New thermostat worked flawless with the A.C. and I never tested the heat mode until now that is getting cold. Your System Was Just Turned On. A friend of ours bought a new house recently. Almost magically, it can also pull heat from the cold outside and push it indoors to heat! If your fan motor is not coming on when the thermostat is on the call for heat with the fan setting on auto, this could be caused by several issues. Well, if your furnace is blowing cold air, it’s most likely due to one of these problems: Your thermostat settings need to be adjusted; You have leaky air ducts; Your fan limit switch settings need to be adjusted; Your furnace is overheating ; Yeah, that’s a lot of possibilities. HVAC Controls DDC. The LCD screen on my old thermostat kicked the bucket. We tried to replace this thermostat with a programmable one. Heat Pump Blowing Cold Air | Refrigeration Heating Troubleshooting. When you notice that you have a furnace blowing cold air, the first thing you should check is the thermostat. When the thermostat is on, it might set the air to the room temperature. No problem, or so I thought. I have been told to try and replace the water pump. The problem is if it’s 30 degrees or lower out it’s just blowing in freezing cold air. Unfortunately I have to look into this myself as my roommate is never around or doesn t care to help. We put the r … read more. The thermostat is set to 70 degrees. Just now I set the heat to 74 the heat turned on heated the room to 76 and then left the fan on after the “heating element” turned off so it was just blowing cold air at my face half the night. 7 Possible Reasons Your Home Heater/Furnace Is Blowing Cold Air. Claim Offer More Offers. Viewed 1k times 1. I live with my roommate who has a Nest thermostat. One of the most impressive things about a heat pump is that it can both cool and heat your home. I reinstalled the old unit due to the house getting too hot with my daughter here. The thermostat is what determines when the auxiliary heat is energized. My husband said the unit in the basement is cold and he couldn't see a flame. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it … Dual-fuel systems are much more efficient and keep you more comfortable than electric resistance heating. If the Wi-Fi connection is still unsuccessful, we recommend contacting your cellular or Internet service provider to reestablish service. Check the furnace’s air filter. If you just turned on the heat, hot air may not yet be flowing through your air ducts. So, how do you know which problem is causing your furnace to blow cool air? off. It is unusually cold outside. All these concurrences leading to the problem of car heater blowing cold air. What am I missing. Is your furnace blowing cold air or not turning on? The new thermostat blows cold air when the heat is on. This video will show you where you should start with your furnace troubleshooting. NO – My heating isn't working, but I'm still feeling air flow. This time of year, especially when it gets cold outside in the evenings, we get many calls from homeowners concerned that there is cold air blowing out of the duct registers in their home when their heat is running. Called a “dual-fuel system”, the gas furnace kicks on when the heat pump can no longer efficiently pull heat from the cold air outside. If a thermostat is set incorrectly, you might notice your furnace blowing cold air from the heat registers, a lower than expected temperature reading on the thermostat, or you may even hear your air conditioner running outside. I installed a new thermostat in our new house and like i said, it's blowing air, but the air is not cold. While conventional gas or electric furnaces blow hot air, from 130 to 140 degrees for short periods of time, a heat pump will gently blow warm air, from 110 to 115 degrees and stay on longer to circulate it. This is when the outside is around 35-40 degrees and the indoor temperature is around three degrees cooler than the thermostat setting. Note that auxiliary heating is not the same thing emergency heating (displayed as “EM HEAT” or “EMER” on most thermostats). Go to your thermostat and take a look at the fan setting. I checked and the Best said it was 78 degrees inside when I had it set to 68. I used the same wiring as the thermostat before it and now it is only blowing warm air. Again using Occam’s Razor, we can assume that the next likely culprit for your heater blowing cold air is your thermostat. When a thermostat gets stuck to the ‘open’ position, the engine takes a much longer time to warm up. Auixiliary Heat will turn on automatically when heat can no longer efficiently transfer heat from the outside air to heat pump. 3000 digital thermostat - heat pump installation. (I'm thinking job well done right now) Once the home reached it's target temperature, I felt cold air blowing. It can be tough to find why your S10’s heater is blowing cold. We turned the heat off and the vents are still blowing cold air. The old thermostat blows hot air when in heat mode. The heater was on last night, and working fine. Your furnace may be blowing cold air because the filter is too dirty. If you have a Nest learning thermostat that blows cool air when it’s set in heating mode, you have to adjust the settings of the O/B wire orientation of the heat pump. $25. Nest Thermostat isn't blowing cold air. But, using the info above about how and why a heater would fail can make it a lot easier. Some conditions may apply. Why is my home heat blowing cold air only? I installed an Emerson Sensi wifi thermostat. Ensure that there is actually a problem when your heat pump is blowing cold air . The auxiliary heat would kick in at this point to help maintain the temperature in the space. Temperature on thermostat always shows between 68-70 max. Any help would be nice. Nest thermostat turns ON AC instead of heat. If your furnace is blowing cold air some of the time, but working otherwise, there are a few possible reasons for the problem. AUTO ensures that the blower will run only when the furnace heats the air. Conclusion: Heat Not Working Chevy S10. There are other reasons your heat pump could be blowing cold air instead of heat, but those are the basics. Call 614.262.1818 for details. my furnace starts up blows hot air and then after a minute. I followed the instructions to the tee, took pictures and went back an rechecked my work. The Thermostat Fan Is Turned Incorrectly. Installed new Sensi Thermostat, Everything Works Except No Cold Air . Reasons Why Your Furnace Might Be Blowing Cold Air The Thermostat is Set Incorrectly Symptoms. Does the thermostat show any of the following icons or messages? Otherwise your electric heater or gas furnace will not turn on. 1434I just installed a Honeywell RTH9580 wifi thermostat and cannot get it to blow cold. This morning it was freezing in the house. Air coming out flat, not cold or hot, regardless of whether it is set to heat … One: The thermostat could be faulty. The vents are blowing cold air. I have a 1998 Ford Expedition 5.4 V8 engine, It is blowing cold air, no heat. The heat pump mode is operating but can not keep up. You can do this by following the steps given below. Details. RTH9585 blowing cold air when set to heat I installed a new RTH9585 over the summer, our old Robert Shaw stopped working. 3,216 satisfied customers. Answer: Several possible things could be the cause of your home heat blowing cold air only. Your Sensi thermostat will continue to heat and cool your home during this time. Thermostat Screen . Continue to the Thermostat Screen section. I swapped it with a White-Rodgers Sensi thermostat. "Heat" "Heat On" Fire Icon; Sun Icon . Ask Question Asked 3 years, 7 months ago. When your heat pump blowing cold air, take advantage of these useful tips, and save yourself a little trouble. Silly me thought it would be as easy as changing a light switch or ceiling fan. The thermostat was set at 72 and the inside air registered 64. Troubleshooting why cold air blows when the thermostat is set to heating mode. We have a forced air system, all wires from old were matched to the new one. Ensure that your thermostat is set higher than the temperature in your home. Update amazon now offers a free smart home consultation After two not helpful calls with Honeywell, I have the unit set on Cooling and it is blowing hot air. No warm/hot air coming out of vents. Once I replaced the thermostat, the furnace turned immediately upon adjusting the thermostat to do so. Schedule Service. I bought my Nest Thermostat in December and about 3 days ago I noticed that it wasn't as cool as usual in my apartment. When the heater blows slightly warm instead of cold air, a thermostat with stuck open valves is to be blamed for. When his inspector looked at his HVAC system (a heat pump, meaning it both heats and cools the house), a few big problems immediately made themselves known. Air is flowing strong, furnace fan is working. If there is anything you would like to add, please feel free to leave a comment below. We have replaced thermostat, radiator cap, blew out the heater core, attempted to get any air in the system, out. Rebecca, if I were close to where you live, I would come out and take a look at your system and tell you what was wrong and repair it for you. It still required me to rewire it. Check the Thermostat Fan Setting. I checked my wiring, which does have a C wire, and that seemed fine. Air trapped in the heater core. Furnace Blowing Cold Air : 11 Common Reasons Why And How to Fix It 1. Will a badly worn impeller on the water pump be my problem. Continue to heat know which problem is if it ’ s 30 degrees or lower out ’... Blows cold air when set to heat pump is that it can be to... And keep you more comfortable than electric resistance heating interrupted, off, or out of.! My heating is n't working, but those are the basics Sun Icon that seemed fine is to blamed!, hot air may not yet be flowing through your air ducts my wiring which. 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