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Discussion Starter · #1 ·
I ran into a rheem furnace 80% with a surface igniter. The problem is tht the igniter stays on when the t-stat calls for cool. that's right this is happening in the cooling mode. I'm thinking the board may be bad. Any suggestions would be greatly appreciated. thanx
 

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Discussion Starter · #3 ·
I've checked t-stat, line voltage, low voltage, etc. everything works fine except for the fact that the igniter cums on and stays on during the cooling cycle
 

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No voltage on the W while this is happening?

Not using a power stealing thermostat?

Points toward the board then.
 
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