Looking at the instructions it says that you can recall the last LED error code by removing the lead from one side of the Draft SafeGuard Switch. I decided to let it keep trying because low gas content can be one of the causes for 31 and the restart procedure has you turn the gas off. Looking at the error code led, it was flashing 31. I could hear a hum in the furnace but it didn't start. Ok, after about trying to do the restart procedure three times, I started to try and find out the problem. The furnace kind of reminds of electronic fuel injection. I have knowledge of electrics, lots of troubleshooting experience and a VOM. However, this time, I made the problem worse. Anyway, it was really cold 3 days ago and I tried to get it to light following the procedure and it wouldn't this time. I have had this problem before.typically every winter for the first lighting. Ok, I can't get my Carrier 58STA furnace to light up.
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June 2023
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