Forum Discussion
morley
Jun 24, 2021Explorer
Old-Biscuit wrote:
When Thermostat Closes......does the furnace fan come ON?
If NO...then you need to check that DC is going to furnace...
*On/Off Circuit Breaker ON furnace tripped --- mauanl reset
*DC Source Fuse Blown
IF YES....does the Spark Electrode Fire (CLICK CLICK CLICK)
Does the flame light off?
If No...then need to check that airflow from fan is not obstructed
*Mud Dabbers/Nest/Debris in Intake/Exhaust Ports
*Return air path obstructed
*Sail Switch stuck/paddle not moving...under the motor cover
If Spark Electrode fires/flame lights then goes out
*Electrode dirty (soot/carbon)
*Bad Electrode
2008 RV-----Time to open up the exterior access and clean/test things out
Thanks Old Biscuit, very profound advice, much appreciated.
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