| [GMCnet] 1977 Birchaven Water Heater 12 V Power Source? [message #358847] |
Tue, 22 September 2020 00:49  |
Stu Rasmussen
Messages: 130
Registered: January 2019
Location: Silverton, OR
Karma:
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Hi everyone!
My troubleshooting of the water heater has hit a slight snag and maybe
someone else has been down this road before.
My 77 Birchaven has an Atwood engine coolant / propane water heater with
electronic ignition for the burner.
The burner doesn't light when switched on because there is no +12 vdc to
the switch. Checking the Coachmen 12 V electrical schematic J-EL-365
doesn't even show the water heater. (The WH is adjacent to the furnace,
which does have power)
Anyone know where the water heater +12VDC power source is supposed to be
coming from?
I thought I had an 'aha' when I found a blue wire in the living area
fuse compartment area that had been clipped off at floor level for some
reason (the furnace power comes on a blue wire) but that wasn't it. I'm
going to do testing on the water heater by stealing power from the
furnace but it would be nice to know where the actual power should be
coming from. Yes, all the living area fuses are good.
Thanks in advance
Stu
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Stu Rasmussen W7QJ
Silverton, OR
'77 Birchaven
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