ReplyVery common for those pressure switches to get bad contacts, had to change a lot of them.
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Check and make sure the inducer motor is sealed on the backside real well
Professional Member*
Very common for those pressure switches to get bad contacts, had to change a lot of them.
Professional Member*
I have also found the inducer motor relay stick on goodman boards. It would never turn off and the pressure switch would stay closed and throw an error.
It's a switch, it has moving parts. Light switches fail, boards fail, pressure switches fail.
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If you have a smart valve system, eliminate that first.
The, tee into the hose and watch the pressure during several tries. If you see the same pressure that closed the contacts previously, during a failed attempt, replace the switch.
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2 Tim 3:16-17
RSES CMS, HVAC Electrical Specialist
Member, IAEI
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