I immediately contacted Ecobee technical support and told them what was going on. This morning neither the burners or the blower wou … However, it would not turn on the fan or generate any heat. To Set Thermostat to Auto Mode. There are two possible routes here, one of which many homeowners who are new to heat pump systems encounter. I have a York two stage AFUE 96% furnace, installed 9 years ago (model TM9T060-12). My old thermostat everything works just fine but ecobee blows cold air on cold or heat. Heat pumps usually produce air that is 85-92°F. I believe they were just replaced (we just - Answered by a verified HVAC Technician ... its only blowing air, not cold air. I have a heat pump and air handler. I have Red - Rc Green - G Yellow - Y1 Blue - O/B Added wire - White - Common White - W1. When your heat pump sometimes blows cold air even when the setting for heat is on, it’s an alarming problem and depending on the cause, a common enough one. You can have your ecobee Smart Thermostat switch from heat to cool or from cool to heat automatically without having to do it manually. This is plenty warm to heat your home to your desired 72°F. Two Reasons Your Heat Pump Is Blowing Cold Air. Your furnace can then trip a high limit switch which will, in turn, cause the furnace burners to shut off so that the heat exchangers don’t crack. Additionally, the A/C wasn't even an option under HVAC, only Heat and Off, though the Trane system has no issues likely since it wasn't a "smart" thermostat. Color wires are weird due to swapping from conventional to heat pump. We followed the troubleshooting in the manual and even reset the thermostat twice to original factory settings. Clogged air filters could be causing cold air to blow out of your vents. Press Menu on the main screen. The brand new Ecobee thermostat was somehow set to 81 degrees and climbing with no end in sight even though it was still set to 70 degrees. 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. This might sound crazy, but a heat pump can be working just fine even if the air feels cold. How to minimize the use of auxiliary heat with a heat-pump on your ecobee thermostat Question: We have a heat pump and recently installed the ecobee 3. The ecobee powered on without issues. Last night the it seemed to be running, but was blowing cold air. Go to System. Back on … Set the HVAC to Auto. 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. My furnace is a Trane XL80 and my heat pump is a Trane XE1000 Weatheron. My AC will not blow cool air. A dirty air filter can block airflow over your furnace’s heat exchanger, which can cause it to overheat. 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