M.C. Enterprises 94398MC Atwood/Dometic Thermal Cut-Off Kit

M.C. Enterprises 94398MC is an aftermarket thermal cut-off (TCO) kit for selected Atwood/Dometic RV water heaters that specify the 94398 thermal cut-off replacement. M.C. Enterprises explicitly catalogs 94398MC as a thermo cut-off kit.

Application and component identification

• Aftermarket part number: 94398MC
• Corresponding water-heater service reference: 94398 thermal cut-off kit
• Application: Selected Atwood/Dometic direct-spark-ignition (electronic ignition) water heaters with matching thermal safety wiring

This thermal cut-off is a protective device for excessive heat at the water-heater burner/flue area. It is not the separate temperature-control thermostat or ECO/thermostat kit. Earlier Atwood factory parts references identify a thermal cut-off under original part 93866; later replacement listings reference 94398. Confirm the specific water-heater model, original cut-off and electrical connectors before ordering; do not assume all older revisions or pilot-only appliances are compatible.

A tripped thermal cut-off can indicate an overheating or obstructed-flue issue. Have the cause inspected and corrected by a qualified technician before replacement, and never bypass a safety device.