Resideo Q313A1139 Thermopile Generator 750mv 35 in

Product Description

The RESIDEO Q313A1139 is a 750mV replacement thermopile generator designed for millivolt heating systems. A thermopile converts heat from a standing pilot flame into electrical current, supplying the voltage needed to operate gas valves and controls in systems that run without a separate 24-volt power source. The Q313A1139 features a 35-inch lead and spade terminal connections, making it a direct-fit drop-in for field replacement. Licensed HVAC technicians and gas appliance service professionals handle this component during routine maintenance and gas valve troubleshooting.

This thermopile generator is suited for residential millivolt gas appliances including wall heaters, floor furnaces, gas fireplace inserts, and other standing-pilot heating equipment. The 35-inch lead length provides adequate slack for routing in tight firebox or heater cabinet installations. The included push-in clip secures the thermopile probe in the pilot flame for consistent and reliable millivolt output.

Key Features

• 750mV output rating for millivolt gas heating systems
• 35-inch lead length accommodates a range of appliance configurations
• Spade terminal connections for straightforward wiring
• Includes push-in clip for secure pilot assembly mounting
• OEM-style replacement design for field serviceability

Compatibility

Designed as an OEM-style replacement thermopile generator for millivolt gas heating appliances using a standing pilot system.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified gas appliance service professional. Shut off the gas supply and allow all components to cool completely before removing the existing thermopile. Route the lead wire away from hot surfaces and ensure the probe tip is fully seated in the pilot flame using the provided push-in clip. Refer to local codes and the appliance manufacturer service manual for pilot assembly specifications.