Replacement Kit: 93866 Thermal Cutoff & 91447 ECO Thermostat Assembly What this kit does Contains the 93866 thermal cutoff and the 91447 ECO thermostat assembly. These safety and control components stop the heater when temperatures exceed safe limits and restore proper temperature control when functioning correctly. Designed as a direct replacement kit to or restore A*wood gas/electric EXT water heaters without replacing the entire unit. Key benefits Restores safe operation and reliable temperature control after a failed cutoff or thermostat. Saves time and money compared with replacing the whole water heater. Directreplacement fit for the listed models, minimizing installation adjustments. Simple installation — suitable for a competent DIYer or a professional technician following standard safety procedures. Compatibility (fits A*wood Gas/Electric EXT Water Heater models) G6A3E / 4E / 6E / 7E / 8E GH63E / 4E / 6E / 7E / 8E GCH64E / 6E / 7E GCH6A7E / 8E / 9E / 10E GC6AA7E / 8E / 9E / 10E G101E / 2E / 3E GC101E / 2E GC10A2E / 3E / 4E GH101E / 2E / 3E GCH10A2E / 3E / 4E G6103E GC6A7E GH6103E WH9EXT G9EXT GE9EXT GEH9EXT G16EXT GE16EXT GEH16EXT Installation and performance notes This is a direct replacement kit intended to match the original part numbers 93866 and 91447. Follow manufacturer guidelines or installation videos for correct wiring and mounting. Turn off power and gas supply and follow safe work practices when installing safety devices. If unsure, have a qualified technician perform the replacement to ensure safe and correct operation. Typical applications / use scenarios a tripped or failed thermal cutoff that prevents the water heater from heating. Restore temperature control after ECO thermostat failure that causes overheating or shutdowns. Perform preventative maintenance or when refurbishing a used A*wood EXT series water heater. Before ordering Doublecheck the part numbers, compatibility list, and product images to confirm this kit matches your heater model and existing parts. If you have any doubt about fitment, consult the heater's model plate or a service technician to verify compatibility.