American Water 100093818 Thermocouple Lp Gas Water Heater

Product Description

The AMERICAN WATER 100093818 is a replacement thermocouple designed for LP gas Flameguard water heaters, specifically the FG-40T34 model. A thermocouple is a safety sensing device that monitors the standing pilot flame and signals the gas valve to shut off fuel flow if the pilot extinguishes. This prevents unburned gas from accumulating in the appliance. The 100093818 is an OEM-referenced part intended for installation by licensed plumbers or qualified water heater service technicians working on LP gas systems.

This thermocouple is intended for use in LP gas Flameguard residential water heater applications, specifically identified for the FG-40T34 unit. It fits within the pilot assembly and connects directly to the gas valve thermocouple port. Typical install scenarios include pilot outage troubleshooting, gas valve replacement pre-work, or scheduled maintenance on aging water heater components where the thermocouple has weakened or failed to generate adequate millivolt output.

Key Features

• OEM-referenced replacement thermocouple for LP gas Flameguard water heaters
• Designed for the FG-40T34 water heater model
• Monitors standing pilot flame to control gas valve safety shutoff
• Direct fit for the existing pilot assembly and gas valve thermocouple connection

Compatibility

Designed as a direct replacement thermocouple for the American Water Heaters FG-40T34 LP gas Flameguard water heater series.

Installation Notes

Installation should be performed by a licensed plumber or qualified gas appliance service technician in accordance with local codes and the IFGC. Shut off the gas supply and allow the pilot assembly to cool completely before removing the old thermocouple. Ensure the thermocouple tip is properly seated in the pilot flame and that the connection at the gas valve is hand-tightened then snugged with a wrench — do not overtighten. Verify pilot flame engulfs the thermocouple tip fully before restoring normal operation.

Technical Specifications

• Fuel Type: LP Gas
• Compatible Model: FG-40T34
• UPC: 035505627841

Standard Information

• Brand: AMERICAN WATER
• Manufacturer Part Number: 100093818