Electric heat

[George Lowry]

Ok, I am need of some direction. We are in the middle of setting up a
huge sale this weekend and don't have time to spend in a long
troubleshooting procedure. We have basically moved into the coach and
this morning it was a bit nippy so I tried to turn on the electric
heaters. The one in the bathroom worked correctly, however the one in
the galley did not.

This is a '95 WBDA 4203.... I switched the thermostat over from the
"cool" setting to the "heat" setting and could hear the relay under
the galley click, but the heater failed to come on. Then I remembered
that the front A/C and the galley heater shared a C/B and that the
Front A/C master (on the drivers left panel) needed to be on.
However, when I turned it on, the compressor for the front A/c came
on. I tried switching the thermostat to heat; To off, and all other
variations. Even turned the center thermostat to the off position.
The front A/C compressor still came on whenever the A/C master was
turned on.

So as to get some heat in the coach this morning, I turned on the
Aquahot and it worked normally.

Later in the morning, I tried again and with the front thermostat on
either heat or cool, the front compressor still comes on with the
front A/C master. Seems like there must be a changeover relay
someplace that is stuck. I don't know where it might be and am too
busy to chase it right now. I am in hopes that Jeff or Ralph might
know exactly where to look. Or tell me that my thinking is completely
wrong...

Thanks for the help,

George Lowry
'95 WBDA 4203 & GM 4106 (for sale)
Spearfish, SD Currently in CA trying to get everything sold!!!!