This safety sensor is used in gas-powered commercial dishwashing and warewashing equipment to help control and maintain the pilot flame. It works by generating a small electrical signal when the pilot flame heats the sensor tip. This signal travels through the 48-inch lead wire to the gas safety valve, keeping the gas supply open so the machine can continue heating water during operation. Over time, heat, carbon buildup, and oxidation can weaken the sensor, causing it to produce less power. When this happens, the pilot flame may go out after the control knob is released, stopping the heating system from working properly. Replacing a worn sensor helps restore normal ignition and steady operation. This part is commonly used in commercial dishwashers, warewashers, booster heaters, and other sanitation equipment that relies on safe gas heating control.
Equipment Compatibility:
Safety control and heating supervision uses for Champion coaxial thermocouples include commercial dishwashers, undercounter warewashing units, booster heaters, and conveyor-style washing systems. This Thermocouple 109902 is compatible with equipment from brands such as Champion, Jackson, Cleveland, Vulcan, Parker, and more, where reliable pilot flame monitoring is needed for safe operation.
Brand Compatibility:
This thermocouple can replace several similar safety sensor parts used in commercial warewashing equipment from brands such as Champion, Jackson, Cleveland, Vulcan, Parker, and more. Full cross-reference details are available in separate technical documentation for accurate matching.
Product Specifications:
Product Type: Coaxial Thermocouple
Manufacturer: Champion
SKU: 109902
Lead Wire Length: 48"
Thread Size: 11/32"-32
Sensor Design: Coaxial structure
Output: Millivolt signal
Application: Commercial warewashing and dishwasher systems
Key Features:
- The 48-inch lead wire allows easy installation through deep equipment cabinets without tight bends or stress on the wire.
- The 11/32"-32 threaded fitting ensures a secure connection that helps maintain a steady and reliable electrical signal to the gas valve.
- The sensor helps keep the safety valve open during operation, preventing unwanted shutdowns during washing cycles.
- The quick-response tip heats efficiently from the pilot flame, helping improve startup and ignition stability.
Service Feedback:
“Pilot flame stability improved noticeably with consistent ignition after replacement installation.”