Question about RTO Atwood DSI-RV Water Heater-6 Gallon
When I start my Atwood motorhome furnace it will purge, ignite and stay lit for about 6 seconds and then go out. This cycle will repeat 3 times and then just blow cold air. If I turn it off and then on again the cycle of 3 non successful starts will repeat. I've removed the circuit board and cleaned the contacts but the problem is still there. How do I get the nozzel out to inspect/clean it?
Atwood Excalibur 8500-III furnace parts can be found at:American RV ph.# 626-513-4777
an off balance or, wobbly fan can cause the screeching as can a combustion fan that has become loose on the motor shaft
there is a small notch in one of the fan blades a long 1/8" allen wrench goes into this and fits into an allen screw that locks the fan onto the motor shaft
there is a small hole just to the side of the combustion fan shroud this can be used to enter the allen screw on the fan's collar
if your furnace ignites then goes out
check your sail switch: it must be pressed and held down by the fan air before ignition can occur or, for the burner to continue to burn
the high limit switch should remain closed if it doesn't show continiuity with an ohm meter replace it.
Posted on Dec 15, 2014
Problems may be the fan is not tripping in
Posted on Oct 12, 2009
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Posted on Jan 02, 2017
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