No 12 Volt Power in RV: Complete Troubleshooting Guide
Troubleshoot complete 12 volt power loss in RV. Step-by-step guide covering batteries, fuses, disconnect switches, and wiring.
Troubleshoot complete 12 volt power loss in RV. Step-by-step guide covering batteries, fuses, disconnect switches, and wiring.
Consistent 2-minute shutdown under load indicates fuel delivery cannot keep up with demand. Check fuel pump, bleed system, verify no restrictions. Also check if generator is undersized for AC load - may need soft start on AC unit.
Motor overheating in a 1997 Ford Rexhall typically stems from thermostat failure, water pump issues, or airflow problems. After flushing the radiator, check the thermostat, inspect for leaks, and verify the cooling fan operation.
Intermittent Greyhawk AC with working fan indicates compressor clutch cycling. Check refrigerant level, clutch engagement, and voltage at the clutch coil. Low refrigerant is the most common cause.
Fan clutch bolt pattern mismatch is common with Ford replacements. Try aftermarket suppliers (Gates, Hayden) with exact fan measurements. May need to buy matched fan and clutch set. Having holes enlarged by machine shop is last resort.
Country Coach radiator fan depends on chassis and engine type. Source from heavy truck dealers like FleetPride, Beaver Coach Sales, or engine OEM. Get VIN and engine info before ordering. Consider professional installation.
Quick-disconnect coolant fittings release by squeezing tabs or pushing a collar. Do not pull hard on the hose. Some require a special release tool available at auto parts stores.
5 Star X4 tuner improves V10 throttle response and transmission shift points noticeably. Fuel economy gains are modest. Best program for RVs is Tow mode. Worth it if you want better drivability.
The 2017 Ford E450 has a 175-220 amp alternator depending on configuration. For DC to DC charging of LiFePO4 batteries, size your charger at 30-50% of alternator rating, typically 40-60 amps.