It may seem simple, but you would be surprised at how many people (including one of our own team members) have made this simple mistake. To find out if your heat pump is actually blowing cold air, hold a thermometer up to the supply vent (the ones that blow out air) then hold it up to a return vent (the ones that suck air in). Incorrect Thermostat Settings. We welcome your comments and The air coming from your supply vent should be anywhere from 15-30 degrees hotter than the air near your return vent (depending on how cold it is outside). This simple guide will explain the difference. Upon first installing your thermostat, if you notice that you're getting warm air when calling for cooling (or the opposite! Just not hot.I have contacted Honeywell support via email, waiting for a … Directions clearly show red wire being hooked to the RH terminal, but it should have been hooked to the RC terminal. Incorrect thermostat setting. I did the same thing for a neighbor. And, in cold weather, heat pumps tend to blow warm air out at 95°F. This thermostat is not compatible with heat pumps. If your AC is blowing hot air, the thermostat may have been accidentally set to “heat.” If this is the case, it’s easy to fix on your own. suggestions. Make sure the thermostat is set to “AUTO”, not “ON”. We are having problems with the staging of the system, especially in heating mode. Y - yellow 3=off A furnace typically puts out air at around 130 degrees, whereas warm air from a heat pump is only a little over 90 degrees on a moderately cold day. home improvement and repair website. ; Press Next. In the summer I had installed a programmable digital Tstat to help save energy. If you’re troubleshooting the cooling mode, follow the same steps but set the temperature below room temperature instead. Potential Problems. Do you have thermostat wars going on in your office? The supply vents did start blowing warm air. Things to try? *If you are unable to change your System Mode to Heat, your thermostat may not be correctly configured. If temperature setting is lower than current temperature, and display says COOL ON, contact your heating and air conditioning contractor I will attach a pic of the original thermostat wiring as well as how I have wired the new Nest. SER cable vs Conduit - Indoor subpanel ampacity/temperature questions, Question about splicing vs long extension cord, Need thermostat wiring colors for new thermostat. Thermostat is definitely set on cool, says “cool … No issues using heat. Basement Wall Leaks - Broken Water Pipes or something else? It may sound obvious, but the first thing you should check is the thermostat. 2=on Improper thermostat setting. You follow the inside label wiring. - black tape off Similarly, air conditioners can blow air as cold as 55 degrees, which is a lower temperature than the cool air from a heat pump. As the title mentions, I can only get this to blow heat when it comes on. When I turned on the cool mode (and after the warming up period) it starts to blow warm/hot air. Sw3 I first tried to turn the heat on in case they were just backward some how and the real heat came on with the heater smell (the ac function doesn't have this smell just is hot). Honeywell Thermostat; RTH9585WF blowing heat on cool setting. I went outside and the unit is cold and is exhausting cold air. Working perfectly now Very much appreciated. HEAT Mode vs. AUTO Mode. Below is a list of possible causes. When your home drops below or rises above a certain set temperature, it triggers the heating or air conditioning to heat or cool your house. Dirty air filter. Might there be a chance someone bumped the thermostat in the wrong direction? Heat Pump Blowing Cold Air | Refrigeration Heating Troubleshooting Any tips appreciated! The Honeywell RTH3100C1002/A Digital Heat/Cool Pump Thermostat has been redesigned to offer users peak performance in an incredibly simple and intuitive manner. The model no. The RTH9585WF. You need to call a qualified HVAC professional. 2=off Questions of a Do It Yourself nature should be I'm looking for some advice on the best way to configure my furnace for best performance during heating and cooling. O - orange C - blue 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. Do you know the difference between running an air conditioner on HEAT mode compared to AUTO mode? submitted to our "DoItYourself.com Community Forums". All information is provided "AS IS." Here’s why: The average body temperature is around 98.6 °F. E - black Copyright© Heat pump not heating. In other words, it's not putting out any heat at all. If the air temperature really isn’t sufficient for your needs, there are a … ... Greetings: Contact our experts online today, or give us a call by dialing 888-454-7365! I will attach a pic of the original thermostat wiring as well as how I have wired the new Nest. to this site, and use it for non-commercial use subject to our terms of use. I have connected the wiring Old---->New W2 - white Incorrect Thermostat Settings. home improvement and repair website. Common causes for AC to blow hot air Thermostat is improperly set. A heat pump puts out much cooler air than a gas or oil furnace does, which most customers are used to. If the heat pump turns on when you want cool air, but not for heat, this is likely the cause. Have you solved the problem? Two Reasons Your Heat Pump Is Blowing Cold Air. New thermostat worked flawless with the A.C. and I never tested the heat mode until now that is getting cold. I am trying to wire my thermostat to my heat pump and A/C. Heat pumps take this process and crank it into overdrive, extracting heat from cool and even cold air. If not, your system may have a valve problem, a refrigerant charge issue, or a compressor problem. Unlike furnaces which heat in short, strong bursts of “hot” air, heat pumps run longer to produce a steady stream of warm air (warm air that can feel cold to us). This simple guide will explain the difference. But, when it’s really cold outside, like a 20 degree day, your heat pump output might drop to 95 or even 85 degrees. Honeywell Heat Pump Thermostat Troubleshooting.Hello Richard! 13 reasons your furnace is blowing cold air. You’re busy – and so is your family. Contractor's Assistant: Did you double-check the thermostat's settings? And because the heat pump switched to cooling mode, it will blow cold air into your home for a few minutes. 7 Reasons Your Heater Blows Cold Air/AC Blows Hot Air. Step 2: confirm that the problem is in the thermostat or its wiring Forced Warm Air Heat Won't Stop I installed a RTH 6360 Honeywell thermostat about 2 months ago. This energy is transferred to internal air that is passed through the heat pump and then blown back into the home. Thanks in advance for any help. Weird but true. G - green Sw2(heat off delay)= 1=on Basement Wall Leaks - Broken Water Pipes or something else? You’re busy – and so is your family. At the thermostat, press Menu. Sensi Smart Thermostat. ; At Temperature Scale (°F/°C) settings, press Next. Three D-I-Y Fixes for A/C Blowing Hot Air . I just installed a Honeywell rth2310b programmable thermostat and now it is blowing hot air instead of cold in the cool mode. W - orange HEAT mode The unit purely operates in heating mode. Air is flowing strong, furnace fan is working. If you have a heat pump… I configured it for heat pump but still blowing hot air … read more Make sure your thermostat is set to heat. And what about the filters? Honeywell Heat Pump Thermostat Troubleshooting.Hello Richard! I installed a RTH 6360 Honeywell thermostat about 2 months ago. Test cooling and give it about 5 minutes. It will also need to be replaced by a technician. Common causes for AC to blow hot air Thermostat is improperly set. Tried cool mode today and its blowing hot air. Having a heat pump problem and in need of a heat pump solution in the Greater Lehigh Valley area? No your unit will not really get your home down to 50 degree just like my Toyota Rav4 will not really get up to 130 MPH, I didn’t check but I’m guessing. Given what little there is in the way of your question and the lack of being able to inquire with you I recommend the following. Sw1(staging delay)= 1=off 4=off I have the dual fuel type of heat pump and want to know how I can disable the emergency heat mode on the Honeywell thermostat. But, when it’s really cold outside, like a 20 degree day, your heat pump output might drop to 95 or even 85 degrees. However, the outdoor unit struggles to absorb heat from the air if dust, leaves/grass or a fence block airflow over the unit’s refrigerant-filled coils. The air coming from your supply vent should be anywhere from 15-30 degrees hotter than the air near your return vent (depending on how cold it is outside). Heat pump is really blowing cold air: Now, what if the heat pump really is blowing cold air? Any advice? Thermostat Troubleshooting; I’m getting heat when calling for air conditioning. Switching from Honeywell TH2110D to TH8110U. [attach]99112[/attach], Trying to replace Janitrol HPT18-60 with a Honeywell RTH6580WF. Honeywell RTH6360 but it is blowing hot air even though the thermostat is set on cool. On the janitrol colors are below The problem could be your thermostat settings. I wanted a thermostat that was a little more modern than my 25-yr-old mercury bulbs which still worked great so bought a Honeywell at Home Depot only to find out that it would not work with my Heat Pump which has Emergency Heat. To make sure that your heat pump is actually blowing cold air, you’ll want to … I assumed the thermostat was going out so I purchased a new one. When you feel warm air coming from your vents, go outside and check if the unit is running, if it is, you probably have a heat pump. [attach]99111[/attach] The new Honeywell combines O and B and says to put B on C. Well, I was not here when the old t-stat came down, so I don't know which is which. This means the fan will run continuously without providing heat. PJ, you are the man. problems contact webmaster@doityourself.com. HEAT Mode vs. AUTO Mode. Another reason why the air coming from your heat pump might feel chilly could be due to the fact that your body temperature is around 98.6°F and heat pumps blow air that is a temperature below that. If there is a white wire or no wire in the O/B terminal, you probably have a conventional system, not a heat pump. I have been able to install it but when I set the heat only cold air is blowing through the vents. Thermostat for Heat Pump. I am attempting to install a nest third generation thermostat. Furnaces tend to put out about 130 to 140 degree air. If you’re comparing that temperature to the air that a furnace produces, which can range from 120°F to 155°F, the air coming from a heat pump will feel much cooler. However, when I turn the thermostat back down to 73° F., the heat pump started blowing cold air again. But if your Honeywell thermostat isn't View our Privacy Policy here. There are many reasons an HVAC (heating, ventilation, air conditioning) system might stop working. The indoor unit will blow warm air into the room until the set temperature is reached. "Heat" "Heat On" Fire Icon; Sun Icon . This delay is to protect your equipment from short cycling. submitted to our "DoItYourself.com Community Forums". You may freely link Running a heat pump. We have a forced air system, all wires from old were matched to the new one. of the furnace is TUH2D120A9. Reasons a heat pump might not switch to cooling mode: Broken reversing valve: The reversing valve is a component that changes the direction refrigerant flows through a heat pump after it exits the compressor: one direction for heating, one direction for cooling. I just installed a Honeywell rth2310b programmable thermostat and now it is blowing hot air instead of cold in the cool mode. 7=off In contrast, a heat pump running by itself (with no supplemental backup heat) on a 35 degree day, depending on indoor house temperature might only put out 92 degree air. 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