My RV Furnace Stays On After The Thermostat Temperature Has Been Reached

Question:I have a 1999 holiday rambler vacationer with a duo-therm comfort control. The furnace will continue to run after the set temp has been reached. I assume the control has gone bad. Am I missing anything else that could cause this condition?




Robbie:If just the fan is running the time delay switch could be bad, this switch allows the fan to continue to run for a few minutes after the flame shuts down to allow cooling of the burner chamber. If the heat is not shutting off you could have a bad thermostat or a sticking gas valve and should have a tech look at it before you use it again.

Thanks for the Question Good Luck,
Robbie

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Robbie Warford, San Diego RV Repair

Hi, I'm Robbie. Welcome to Money-Saving-RV-Repair.com!

Like the name implies, this site is all about helping you save money while keeping your RV in tip-top shape--and that is all about you having the knowledge to do so.

I've been a technician in the RV industry for 30 years, operating out of San Diego, California. And let me tell you, I love my job.

But I also love empowering RVers with the knowledge they need to make the right decision on repairs, or to make the fix themselves--and that, my friend, is the reason for this website. I hope you enjoy.

Or, learn more about me, my RV service practice, & this website here.