Diesel Data: Automotive Repair

Thermal Limiting Fuse: Description and Operation

OPERATION
The switch is used to measure compressor surface temperature. If compressor surface temperature is excessive the switch will cut battery feed voltage to the compressor clutch. The switch will then reset once compressor surface temperature returns to normal.

Item = Description= Notes
Thermal Limiter Switch = cut out > 252-262 ° F, cut in <225-235 ° F = Scroll compressions only serviced with clutch.