Door Switch; Defrost Heater - Hisense BCD-560WPZ/HC1 (H) Service Manual

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6.7 Door switch

6.7.1 Basic parameters
Load voltage: DC24V
Load current: 0.05A
Rated operating voltage: DC5V
6.7.2 Checking method
Check the connecting wiring of door switch is well or not, repair if it is broken. Refrigerator
/freezer /variation door switch corresponding pins as the drawing below.
Check the magnet on the door is dropped out or not.
3. Normally, when the door is closed, the two pins of door switch should be short circuit;
When the door is open, the two pins should be open circuit. If the result is not abnormal,
change the door switch.
If all above is OK, change the mainboard.
1. Use a screwdriver
to pry open reed pip
cover.
2. Take out the switch

6.8 Defrost heater

6.8.1 Basic parameters
Freezer heater
Rated voltage: AC230V
Rated power: 140W
1.Enter compulsory defrost mode, use a multimeter to measure the voltage between pin
No.1 and No.6 on CN2 connector of the mainboard ,if the voltage doesn't equal to electric
supply power, it means the heater is broken, change it.
2.Use a multimeter to measure resistance of the heater, if the value isn't 378Ω±5%,it is
Hisense Refrigerator