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airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 7724
Experience:  Furnace, A/C and heat pump specialist.
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Payne model pg8j furnace will not operate has rapidly

Customer Question

payne model pg8j furnace will not operate has rapidly blinking error code - power was interupded when unit was operating
JA: How old is the appliance? Have you gotten error messages before?
Customer: 7 years old never had this error code before again power was interrupdeed while running - steady blinking light supposed to mean reversed polarity but this coundnt have happened
JA: Do you plan on doing the work yourself?
Customer: I installed the furnace and have always maintained it could it be circuit board
JA: Anything else we should know to help you best?
Customer: dlike I said furnace was in operation power was interupated and would not restart and now rapidly blinking error code
Submitted: 1 month ago.
Category: HVAC
Expert:  airheatman replied 1 month ago.

Have you tried turning power off and back on to see if board will reset?

Customer: replied 1 month ago.
several times
Expert:  airheatman replied 1 month ago.

Ok is the error still showing reversed polarity and if so do you have a meter to check ?

Expert:  airheatman replied 1 month ago.

What is the error code?

Customer: replied 1 month ago.
Never mind I am through with conversations
Expert:  airheatman replied 1 month ago.

Try swapping the blue and red wires on control board from transformer.SEC1 and SEC 2.

Expert:  airheatman replied 1 month ago.

It is not unusual for polarity to get reversed if utility company changes out a transformer down the road.

If changing the blue and red does not solve issue you will need to replace the board.

If you have further questions, please let me know.

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