Defrost Thermostat ??

Hello,

This might help you understand the automatic defrost cycle of a refrigeration system.

http://www.appliance411.com/faq/howdefrostworks.shtml

Have a great Day.


DonL

A timer usually initiates the defrost cycle. The defrost thermostat prevents the "heater" from overheating, but if the thermostat is defective it could prevent the defrost heater from working, or overheat which could create a fire hazard..