How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Randall Your Own Question
Randall
Randall, RVIA Certification
Category: RV
Satisfied Customers: 10334
Experience:  RVDA/RVIA Master Certified Technician with many years experience.
21664427
Type Your RV Question Here...
Randall is online now
A new question is answered every 9 seconds

My furnace will not work without thr eterior door open. it

Customer Question

my furnace will not work without thr eterior door open. it is flashing a red codeevery three seconds.
Submitted: 1 year ago.
Category: RV
Expert:  Randall replied 1 year ago.

That can be due to several things. One is LP pressure that is too low. That needs to be checked and adjusted at least once a year. Bugs inside the combustion area can be another. IF you have an insect screen, that would rule that out. Low voltage can affect this. If your batteries are low and not on shore power it can affect the air speed on the fan. And lastly, it may be the motor brushes are worn out and you may need a new motor. I would do the battery testing and LP first and see if this corrects itself. Then get back to me if we need to pursue this further. All follow ups are included in our fee. I will make the phone chat offer to you if you think that might be helpful here.