Breakdown Information
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Jackjagt wrote:
RV particulars: HR Imperial 94
Driveline: Cummins 8.3C, Allison World
Miles: 125k
Year: 1994
Break Down Description: Sudden power loss, no steering assist
Symptoms: Hot dash A/C wiring
Effect: hot wires heated the resetable ignition circuit breaker causing engine shut down unexpectedly.
This would happen on damp rainy days when I would run the winsheild demist setting on the dash heater/AC. Sudden power loss was traced to curcuit panel under heat vent under dash.
Avoided problem by relocated panel to cooler location and moved the "hot curcuit" from below the ignition curcuit.
Now refrain from using the winsheild demist setting until I figure out whats causing the dash AC to draw so much current that it heats the wiring so much. Dash AC no longer operative.
I would look to see if the AC compressor is on its last leg. My Beaver coach kept tripping the 30a breaker everytime I would turn on the dash AC. Everything look OK on inspection, so we replaced the circuit breaker. Then when the electric clutch on the compressor would engage the wires got warm..pulling in excess of 20a. Once the compressor was replaced the loads went back to normal and the dash air was cold again.
Lee
