Troubleshooting guide
Girard GSWH-1/GSWH-1M LED diagnostics or lockout
Use this when a legacy Girard GSWH-1 or GSWH-1M diagnostic LED is steady on, blinking one through five flashes, or the heater enters lockout.
Use this atlas to identify likely meaning and prepare for service. Shut off power, LP gas, fuel, or water when a listed appliance condition involves flame, gas smell, exhaust, generator shutdown, high temperature, moving jacks/slides, refrigerant, 120 VAC, control boards, repeated ignition failure, or a persistent lockout. Call the appliance maker, RV dealer, or a qualified RV technician for repair.
Owner-safe checklist
- Count the diagnostic LED pattern exactly: steady on, one through five flashes, then the three-second repeat.
- Use one normal-control reset only if there is no gas odor, overheating, leak, or blocked vent condition.
- Stop repeated restart attempts and record LP, 12V, water-flow, and model-label details.
- Use Lippert/Girard or qualified RV service for internal control, airflow, flame, low-voltage, or repeated lockout faults.