Fault codes / RV water heater / GAS, NO SPARK
RV water heater: Gas, no spark
What it means: Ignition side.
What to check
HV lead loose at the board; electrodes loose on the burner; gap not 1/8 in. or out of the flame path; dirty or cracked porcelain; bad board.
Learn the system
Practice it on a service call
Guided diagnosis
Other RV water heater codes
- RV water heater: Spark, no gas Gas not getting to the burner
- RV water heater: Gas and spark, still locks out Flame not being proven
Full field guide: Suburban and Atwood tank water heater
Codes come from the maker manuals and public service sheets. Your model's own chart always wins, and LP and 120 volt work belongs to a qualified technician.