Warming Drawer Fuse Or Sensor

This upper SPST thermostat is a single-pole temperature switch that helps control heating by opening the circuit at a set temperature. It restores proper temperature cycling and acts as an over-temperature safety device. What it does:

• Opens/closes the heating circuit at its set temperature to regulate heat output.
• Functions as an upper-limit/safety thermostat to help prevent overheating.
• Common symptoms of failure: no heat, intermittent heating, or continuous heating despite controls.
• Used where an upper-temperature cutoff is required to maintain safe operation.

• Disconnect power to the appliance before servicing to avoid shock or injury.
• Compare wiring and mounting orientation to the original part before removal.
• Confirm failure with a multimeter (continuity check) before replacing the thermostat.

This thermal fuse stops power if an appliance overheats, helping prevent damage and unsafe operation. Use as a direct replacement when the original high-limit fuse has failed and the appliance will not operate normally. What it does:

• Opens the circuit when temperatures exceed safe limits, acting as a high-limit safety cutoff.
• Protects the appliance and home from overheating-related damage and hazards.
• Common symptoms of a blown thermal fuse: appliance won't heat, intermittent heating, or the unit fails to start.
• If the fuse blows, it often indicates an underlying issue—inspect heating elements, thermostats, and venting for faults.

• Disconnect power to the appliance before servicing to avoid electrical shock.
• Allow the appliance to cool, then access the fuse location; note wiring orientation and terminal connections for reassembly.
• Replace with the exact type of thermal fuse; do not bypass, jumper, or defeat the device.
• If the replacement fuse fails again, check for restricted venting, failed heating components, or faulty thermostats/controls.