We would like to override our heatpump and have the gas furnace run instead. The heatpump has a setting to instruct it to run up to a certain outdoor temperature, and once it gets lower than that then the furnace kicks in. Our thermostat has an emergency heat setting that is supposed to activate...

Hi everyone! I've been really impressed with the quality of answers on this board, so I'm hoping you all can help... I have an *OLD* GE natural gas furnace (model BLD080E936B1 - good luck finding anything on it... ) that just yesterday started blowing COLD air. It was set to "on" instead of auto...

Hi Why does my gas-furnace not run? (fan-blower won't start) I could not see any blown fuses or circuit-breakers; power-switch is on; I ignited the pilot-light and turned the temp to 90 in thermostat - but fan-blower did not start at all, even after waiting for 10 min; I measured voltage at fan...

We have a Concord Gas Furnace that is about 3 years old. The furnace seems not to respond to the thermostat. We replaced the thermostat with a new digital one but are still experiencing the same issues. We set the thermostat to 83 just as a test. I had my wife record when the furnace came on...

Hi, I have a friend with a GMC gas furnace that will not start. We are receiving a three blinking LED code that says pressure switch failed to close. We found this switch on the main air fan and discovered the fan will not run in auto or manual. We checked for 120 VAC output on the circuit board...