(1)Switch off power.
(2)Remove side protection cover.
(3)Unscrew fastening nut.
(4)Hold the base end of temperature sensing tube and the controller, pull out downward.
(5)Change with new temperature controller.
12.2 Common freezer problems
12.2.1 Freezer cannot be started
When switching on power, the freezer cannot be started. Determine first that the failure is caused by inside or outside factors. The factors may be:
(1) Outside factors
①The fuse is burned, or the contact of plug and socket is not well, or the voltage is too low.
②The knob of temperature controller is set to off position.
(2) In side factors
①Electrical problem of freezer (normally caused by connection terminals coming off or not in good contact).
②Temperature controller out of order (contact point are burned or switch element is damaged, etc.).
③The start capacitor is bad.
MAINTENANCE SERVICE AND TROUBLE SHOOTING Maintenance Service and Trouble Shooting
④The starter relay or overload protector is bad. A bad starter normally is caused by a burn a contact points or the welded point has come off; a
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