ServiceNomad RV · Knowledge
RV AC Keeps Tripping the Breaker
A breaker that trips every time the AC tries to start, or after it has been running for a while, indicates an electrical overload or short circuit.
Low Voltage Damage
RVs are notoriously susceptible to 'voltage drop' at crowded campgrounds in summer. If the pedestal voltage drops to 108V or lower, your AC motor demands MORE amps to keep spinning. This extra heat trips the breaker and damages the motor windings. We highly recommend an EMS (Electrical Management System) or specific surge protector that cuts power if voltage drops too low, saving your AC.
Hard Starting
As compressors age, they get tighter and harder to spin. The initial startup surge (Locked Rotor Amps) increases. If this surge exceeds 20-30 amps for even a split second, a weak breaker will pop. Installing a 'Hard Start Capacitor' or a 'Soft Start' device can smooth out this spike and keep you running.
Short Cycles
If you turn the AC off and immediately try to turn it back on, the compressor tries to push against high head pressure and stalls (Locked Rotor). This trips the breaker instantly. Always wait 3-5 minutes before restarting an AC unit.
⚠️ Safety Notes
- Do not tape a breaker open.
- If a breaker trips hot, let it cool before resetting.
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