Have HVAC Questions? Ask an HVAC Expert for Answers
Hello, most of the printed circuit cards spitting out error codes are made in china and programmed to fit US equipment mfgrs requirements... there is limitless room for error or bogus error codes.
Tell me the brand name and model number of the furnace or air handler please, we can go from there.
Thanks, ***** ***** photo's for me please, a close up of the unit wiring diagram, well lit and exceedingly well focused... and a shot from about 4 feet away that shows the entire controls box with the contactor and capacitors etc.
Use the paper clip icon at the right end of the tool bar, or the 'attach files' link to the left of your send button please.
I will mark those up with trouble shooting instructions, you will need a $30 type class ll multi meter.