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This a pressure switch error I believe.Are you sure it is 56 not 55?
My manual jumps from 55 to 57
The vent inducer comes on and pulls a vacuum through the rubber hose to close the switch.Is the inducer fan running?
OK take the little rubber hoses loos, blow through them and make sure there is condensation or debris in hten.Cleab fittings on switch and inducer housing using a straightened paper clip.Also make sure drain is not stooped up or any standing water in drain
Let me know code
You want to try swapping switch?
Take your time
I will stand by.Watch it a few minutes,If it stays running we know we just have a bad switch
OK we have something either blocking drain , blocking intake or exhauset or losing vacuum somewhere. Have you checked vens outside? I have see as small as a spider web cause loss of enough vacuum to keep switch closed
The inducer draws in fresh air from outdoors, It proves that vent is not blocked and drain is free and clear. If we get an obstruction anywhere, it allows switch to open
Switch has to be open in beginning of cycle.Then you can jump once inducer starts
No the 2 " pipes are normal.May be an issue with the board not recognizing it closed if you want to try swapping boards
I would try swapping boards
Let me know
Did board make a difference?
WOW. Glad you got it working.
If you have further questions, please let me know.
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