SmartBuildings. I bought an Ecobee3 Lite last week, but we haven't had to run the AC since I had bought it because the weather hasn't been too hot. Wrong thermostat setting. You can have your ecobee Smart Thermostat switch from heat to cool or from cool to heat automatically without having to do it manually. I has a label with a model number and serial number on it that says Advanced Distributor Products. The only thing I think I might have wrong is the orange wire was originally going to the W terminal in my old thermostat, but maybe it should be going to O/B instead, and the wire going to W2 should be going to W1? Items in red usually require a service call. Or worse yet, you come out to start the car one day, turn on the AC and it's blowing barely cold air when it was fine just yesterday. Compressor Stage 2 Temperature Delta: The minimum number of degrees from the desired temperature (set point) before engaging the second stage of the compressor. For now, let’s run through some possible reasons why your AC is blowing hot air instead of cold. I'm using G, Y1, W1, O/B, Rh, C. Apologies for the vague/low-information post. But all you have to work with are the symptoms. Why a Heat Pump Will Blow Cold Air My ecobee thermostat won't turn on. So I had changed the Ecobee from Off to Cool, and set the thermostat to 86 and changed the setting to hold until next activity. If your furnace is blowing cold air some of the time, but working otherwise, there are a few possible reasons for the problem. Switch+. Press question mark to learn the rest of the keyboard shortcuts. The thermostat that came with my place has a blue wire hooked up to the C terminal, but when I try to use this one on the C terminal in the RTH6580WF, it doesn't power on. Think of it like turning on a hot water tap. Thanks! So your car's AC was doing fine for the longest time. It is important to note that occasionally, heat pumps will go through a defrost cycle, during which the unit will blow air that is truly cold. My ecobee is making a "clicking" noise and will not turn on! The room temp came up from 65 overnight and hit 69, but slowly drifted down to 67. New comments cannot be posted and votes cannot be cast. Wrong thermostat setting. Why is my ecobee rebooting? 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. Installation 1434I just installed a Honeywell RTH9580 wifi thermostat and cannot get it to blow cold. If so, your heat pump is blowing warm air that just feels cold to you. I have a heat pump and air handler. Installation So I removed the PEK and connected the wires back they way they were inside the furnace, and wired the Ecobee as shown in the pictures. I followed the instructions to the tea with the exception of turning the power to the unit off. Help with installation. So I just need to move the orange wire to O/B and the white to W1 and I should be good. Ok. Here is the wiring of my thermostat before installing the Ecobee, the wiring at the furnace, and the Ecobee wiring. Our heater is running all the time. There's so many different configurations and wirings I couldn't really turn up an answer using Google Fu. In other words, it's not putting out any heat at all. Post with 2081 views. Don't know how I missed that. I can get the unit to power on using the LockState adapter, but I can't get the heat or cool air to kick on. Hi all, I think our thermostat/furnace isn't working properly. The ecobee powered on without issues. Set the HVAC to Auto. I can get the unit to power on using the LockState adapter, but I can't get the heat or cool air to kick on. Below is a list of possible causes. I believe they were just replaced (we just - Answered by a verified HVAC Technician We use cookies to give you the best possible experience on our website. Common causes for AC to blow hot air Thermostat is improperly set. I switched the wires this evening and everything is working now. It only blows fan. Try putting the white wire in the W1 Terminal. It could even be running in the air conditioning mode due to a malfunction. I have an ecobee 3 I just installed and is blowing hot air when set to AC. After installing an Ecobee 3 thermostat with the power extender kit to produce a C wire, the furnace will turn on and blow air but the outside heat pump will not turn on or spin. Likely have a furnace and thought you had a heat pump. The wife wanted to run it tonight and tomorrow since it's going to be almost 90 tomorrow. Currently when I kick the Lyric on (A/C), instead of cold air it is warm/fan pushed air. A subreddit for ecobee and all their smart home products. The words ‘Introducing ecobee Haven’ appear in pale blue text on a forest green background. Help! I have tried reversing the energizer (heat vs cool) and initially it started … read more Is it set to “Warm” or “Heat” instead of … Eight times out of ten, if your furnace is powering up, and everything else seems to be normal — except that it’s blowing cold air (well, unheated air) instead of hot air, you probably just need to replace your ignitor. How can I troubleshoot? So what’s defrost mode? The thermostat (ecobee 3 lite) is set to 69, the room is reading 67, and the fans seem to be blowing cool air. Out of the box, the Ecobee does one thing very, very wrong. Any ideas if I missed something or if I'm doing something wrong? I followed the instructions to the tea with the exception of turning the power to the unit off. Here are just a few things that could mean: 1) Dead Batteries in Thermostat Thanks again! The heater’s blowing cold, or the AC is blowing hot. 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