Forum Discussion

Chief_Bob's avatar
Chief_Bob
Explorer
Nov 07, 2021

Furnace flames cycles off before temp is reached

I have a new to me 2018 Thor Aria 3401. On our first long trip and we needed the furnace. When it starts the flame starts as it should. The flame continues for around 10 minutes and then the flame cut...
Seeking Advice
prichardson's avatar
prichardson
Explorer
Nov 07, 2021
Sounds like it is cycling on the high limit which is an indication of an airflow problem. Make sure that nothing is restricting the return air and that all registers are open and unrestricted.

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