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Old 08-15-2014, 07:12 PM   #1
Join Date: Apr 2014
Location: Tennessee
Posts: 55
On Demand Water Heater

Anyone real familiar with the on demand propane water heaters for RV's?
So far out of three camping trips.. We have not had a whole lot of luck..
1st trip ... It would not ignite..took it to the dealer .. They said mud wasps blocked the little vent tube and charged me $140.00(not a warranty issue)
2nd trip ..worked great the first shower.. 2nd shower it kept shutting down and would go from frigid to hot..
3rd trip this past weekend...Worked perfect first two showers then then next time it would not kick on at all...
This is a 2014 I-Go camper with the new Atwood on demand unit..
I could not find any vent obstructions and have plenty of propane..
Any ideas before I haul it back to the shop?

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Old 08-16-2014, 04:03 AM   #2
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Posts: 2,043
Record your model and serial number. Call your dealer and have them call Atwood or you can call Atwood direct. There is a service bulletin on certain units that require a change in the flow detection/pressure switch portion of the unit that cause it not to start or operate erratically as you describe. It's a simple 5 minute fix. Problem solved.

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Spartan/Cummins 8.3C-300HP/Allison 3060 WTEC-II/25yr RV Tech RVIA Certified/Onan-Cummins Certified
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Old 08-16-2014, 06:36 AM   #3
Join Date: Apr 2014
Location: Tennessee
Posts: 55
Great thank you!!!!
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heater, water, water heater

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