Troubleshooting guide
Coleman-Mach rooftop AC water or condensate inside
Coleman-Mach installation and Mach 8 condensate-pump instructions point to roof gasket compression, condensate drain hose routing, pump kit drainage, and qualified installation work when water enters the living space.
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
- Turn the air conditioner off if water is entering the RV.
- Protect interior surfaces and let ice or condensate drain before another cooling call.
- Record whether the issue follows freeze-up, heavy humidity, rain, or pump-equipped operation.
- Use qualified RV service for roof gasket, condensate pump, drain hose, or rooftop installation corrections.