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RV question: I have a jayco model 23mhb travel trailer & the…

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RV question: I have a jayco...
RV question:
I have a jayco model 23mhb travel trailer & the hot water heater stopped during a recent trip. I noticed black soot on the external vented cover of RV. How can I diagnose the problem here & is it possible to just attempt re-lighting the pilot?
Submitted: 2 years ago.Category: RV
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Customer reply replied 2 years ago
On the same RV, the air conditioning system also was fairly useless - just slight amount of cool air coming through. We were in 100+ degree heat most of the trip.... Hopefully he system just needs to be recharged with new coolant. Is this something I can do myself?
Answered in 4 minutes by:
7/24/2020
RV Mechanic: Randall, RVIA Certification replied 2 years ago
Randall
Randall, RVIA Certification
Category: RV
Satisfied Customers: 27,738
Experience: RVDA/RVIA Master Certified Technician with many years experience.
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Hi! My name is ***** ***** I can assist you with this. I may need some additional information from you first in order to give a complete answer.

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Customer reply replied 2 years ago
Ok - fire away
RV Mechanic: Randall, RVIA Certification replied 2 years ago

Good morning! I have an RV repair facility and work on these systems for a living. When you see soot on the outside that is usually due to one of two things. Either the tank regulator has an issue and the LP working pressure isn't correct OR some bugs or spider got into the burner tube and are causing this. Cleaning that out with some kind of brush will solve that. Air pressure won't work. Most shops have a manometer for testing and adjusting the LP working pressure. Tell them you want it set to 12 Water Column Inches. This should be checked at least once a year and is often neglected. I hope this points you in the right direction here. Randall

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Customer reply replied 2 years ago
That helps - is there a gauge on the tank that shows current working pressure?As you can likely tell - I am RV novice. That was my first RV trip....
RV Mechanic: Randall, RVIA Certification replied 2 years ago

No. It is controlled by the LP regulator and is manually adjusted. If for some reason that regulator failed I would go with one made by MEC Marshall as those are the best.

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