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View Full Version : Carrier 58STA090 gass furnace not working


ANeubie
Nov 25, 2013, 09:59 AM
Furnace isn't heating. 120vac power to Furnace is OK. LED light is blinking a code of 31. I can hear the blower on the bottom. Thermostat batteries and signal to unit is good. I shut down the power to the unit for a few seconds then power on.. it goes through the startup sequence and has the same code. Not sure how to tell if the pressure switch is bad or the inducer (I think the inducer might be the problem). I do not hear gas ignition when the thermostat is turned up but I can hear the click. I do not smell any gas.