Hi, recently furnace has stopped working, the control board flashes 2x giving a 'pressure switch stuck closed' code.
After some trouble shooting steps, if I remove one of the air hoses from the pressure switch and re attach it, shortly after the igniters will fire and the heat will run for 1 cycle and not start again.
When I went back to my furnace I noticed the inducer fan was still running, so I turned the thermostat upstairs off and checked again and the inducer was still blowing. However I am still able to get it to run a cycle by removing the line and putting it back again.
My troubleshooting leads me to believe its likely not the switch itself, but something maybe causing the switch to stick?
When its running a cycle the exhaust draft seems to be flowing fine. I checked the 'P' trap and its filled with water and the drain line running from it doesn't seems to be holding water or anything.
There seems to be no water noises coming from the inducer fan to indicate moisture buildup or anything.
So far I'm wondering if it could be a bad control board? Shouldn't the inducer shut off between cycles? Or at least when there's no call for heat on the thermostat?
-- If anyone has any tips on what I could try to troubleshoot next or possible causes I'd be greatly appreciated - Its dropped down to 25 at night where I live and manually resetting the switch gets old just to knock off the chill in the house.
After some trouble shooting steps, if I remove one of the air hoses from the pressure switch and re attach it, shortly after the igniters will fire and the heat will run for 1 cycle and not start again.
When I went back to my furnace I noticed the inducer fan was still running, so I turned the thermostat upstairs off and checked again and the inducer was still blowing. However I am still able to get it to run a cycle by removing the line and putting it back again.
My troubleshooting leads me to believe its likely not the switch itself, but something maybe causing the switch to stick?
When its running a cycle the exhaust draft seems to be flowing fine. I checked the 'P' trap and its filled with water and the drain line running from it doesn't seems to be holding water or anything.
There seems to be no water noises coming from the inducer fan to indicate moisture buildup or anything.
So far I'm wondering if it could be a bad control board? Shouldn't the inducer shut off between cycles? Or at least when there's no call for heat on the thermostat?
-- If anyone has any tips on what I could try to troubleshoot next or possible causes I'd be greatly appreciated - Its dropped down to 25 at night where I live and manually resetting the switch gets old just to knock off the chill in the house.
source https://hvac-talk.com/vbb/showthread.php?2226701-Goodman-furance-inducer-fan-constantly-running&goto=newpost
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