Furnace problem
Ok furnace would start then in seconds go out blower still running the it would reignite the after a few seconds burner goes out again then finally it stays lit. I had the sail switch replaced didn’t ...
Forum Discussion
Did they measure how hot discharge was getting right at furnace and how fast it got hot?
High temp limit switch
Trips when temp gets to hot in heat exchanger
Obstructions/blockages could be within the ducts, at registers and the path of return airflow...not just at furnace combustion intake/exhaust
Might check LP System Pressure....too high and furnace overfires
S/B 11" WC (0.4 psi) measured with manometer and at least 50% of propane in service
High temp limit switch
Trips when temp gets to hot in heat exchanger
Obstructions/blockages could be within the ducts, at registers and the path of return airflow...not just at furnace combustion intake/exhaust
Might check LP System Pressure....too high and furnace overfires
S/B 11" WC (0.4 psi) measured with manometer and at least 50% of propane in service
