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.
Your 1993 American Eagle's Onan generator producing only 12-15 volts indicates a faulty rectifier bridge (part CR21) or suppressor (part RV21). The correct replacement parts are 305-0696 for the rectifier bridge and 305-0703 for the suppressor.
External generators need signal wire to trigger ATS, which is only connected to onboard genset. Solutions include manual bypass switch, simulating the run signal, or universal voltage-sensing ATS.
When your Dometic RV air conditioner runs but doesn't blow cold air, the most common causes are dirty air filters, blocked condenser coils, low refrigerant, or faulty capacitors. Start with cleaning filters and coils before checking electrical components.
Most RV heat pumps draw 12-16 amps when running, well within your 30-amp service capacity. However, you'll need to manage other electrical loads to avoid tripping breakers when the heat pump cycles on.
Yes, you can remove inverter/charger and install standalone battery charger. Much less expensive than replacement inverter. Check if inverter includes transfer switch - you may need to address that. IOTA or Progressive Dynamics chargers work well.
A loud humming noise with a non-starting compressor typically indicates a failed start capacitor, bad compressor, or electrical issue. The start capacitor is the most common culprit and can often be replaced by DIYers with basic electrical skills.
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.
V10 surging with air/fuel codes often has cheap fix - vacuum leak, intake gasket, or exhaust leak. Do smoke test or spray test before replacing more expensive parts.
Onan fault codes display via LED blinks or digital display. Common codes include 12-overspeed, 13-low oil, 14-high temp. Consult model-specific service manual for complete code list. Persistent codes may require professional diagnosis.
P068A indicates an ECM/PCM Power Relay Control Circuit malfunction in your Ford V10. This typically involves a faulty power relay, damaged wiring, or ECM issues causing engine stalling and starting problems.
Your RV ATS isn't transferring shore power to your AC system due to likely faulty internal contactors or control board issues. This typically requires professional repair as ATS units contain high-voltage components and complex switching mechanisms.
The Norcold kit 633292 power board replacement requires identifying your N821's serial number to determine wiring configuration, as this universal kit fits multiple applications with different connection points.
Schwintek 6-flash code means motor short to ground. Test by disconnecting motor and checking resistance - should be 1-10 ohms between leads and infinite to ground. Common causes are damaged wiring, water intrusion in motor, or failed controller.
Coleman Mach motor replacement with different shaft length needs wheel position adjustment, shaft coupler, or careful shaft trimming. Use puller to remove stuck blower wheel, never pry.