Your Onan 5500 generator's fuel pump chatter and dual light illumination indicates a control board communication error triggered by the remote harness connection. This comprehensive guide covers diagnosis, repair steps, and prevention strategies for all common Onan 5500 issues.
Troubleshoot complete 12 volt power loss in RV. Step-by-step guide covering batteries, fuses, disconnect switches, and wiring.
Your Coleman Mach AC unit on the 2019 Rockwood Minilite 2509s has developed a short circuit that's drawing power even when the AC is off. The fact that the fuse blows before it's even fully seated indicates a direct short to ground in the AC circuit.
Essential RV tire safety guide covering selection, age limits, maintenance, and when to replace.
When HWH 325 levelers turn off immediately after pressing extend buttons, it's typically caused by low voltage under load, loose connections, or a faulty control module. Check battery voltage under load and inspect all connections first.
Your generator likely uses the chassis battery and may have a weak connection or failing starting battery. The main engine alternator charges the chassis battery when running, explaining why the generator starts after running the engine.
Furnace that lights for 5-10 seconds then shuts off is classic flame sensor failure. Clean the sensor with steel wool or emery cloth - do not use sandpaper. If cleaning fails, replace the sensor. Located near burner, single wire connection.
HWH levelers needing battery reset to work indicates low voltage, loose connections, or controller memory issues. Check battery voltage under load (need 12.4V+), clean and tighten all connections, and verify grounds. Call HWH support if issue persists.
Shutting down under load after rebuild suggests carburetor still not delivering enough fuel or governor sticking. Watch governor arm movement during load test. Try gradual load increase to find threshold. Check fuel pump output if equipped.
When a Braun lift stops halfway down and loses power, it's typically caused by a faulty position sensor, loose electrical connections, or hydraulic pressure issues. The fix usually involves checking connections, cleaning sensors, and testing the control module.
Your P0581 code diagnosis is correct - the ECU is detecting high voltage on the cruise control switch circuit. Since you've eliminated external wiring and switches, the PCM likely has an internal fault requiring professional repair or replacement.
The aftermarket trailer brake controller's red wire spliced into your steering column is likely interfering with the cruise control system. You can safely remove this connection, but the brake controller will need a proper 12V power source to continue functioning.
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Freedom 20D losing one circuit after overload indicates internal breaker or output relay failure. Internal breakers may look fine but fail closed. Open unit to locate and test internal protection devices. Replacement parts available through Xantrex or specialty suppliers.
Red fault light with partial power loss often indicates tripped breaker, one leg of 50 amp service failed, or GFCI trip. Check all breakers in main panel and find hidden GFCI outlets. May indicate transfer switch issue if breakers are fine.