Haier HB21FWRSS Service Manual page 26

1-2 are spare.
3-6 Connect to the display panel on the door, Measurement of the 3-4 two wires gives the
output voltage (DC 12V).
7-8 Connect to the environment temperature sensor.
CN6 is the socket connector to ice maker, parts from up to down are:
1-2 Connect to the icemaker sensor; Measurement is same as freezer sensor.
3-4 are spare.
7-8 Connect to ice maker stop switch..
9-10 Connect to Icemaker motor.
CN8 Connects to the electromagnetic subassembly of distributor. Parts from left to right are,
1 Connects to freezer door switch.. Measurement of this point and null line gives the
operation voltage (DC 220V) of freezer lighting;
2 Connect to the inlet pipe heater. Measurement of this point and null line gives the
resistance (14±1KΩ)of the inlet pipe heater and the operating voltage (AC 220V)
3 Connect to the upright girder heater. Measurement of this point and null line gives the
resistance (2420±130Ω)of the upright girder heater and the operating voltage (AC 220V).
4 is spare.
5-6 Connect to the defrost heater. Measurement of these two point gives the resistance
(194±10Ω)of the defrost sensor and the operating voltage (AC 220V).
CN9 Parts from left to right are,
1 Connect to the horizontal girder heater. Measurement of this point and null line gives
the resistance (1936±100Ω)of the horizontal girder heater and the operating voltage (AC 220V).
2 is spare.
CN10 parts from left to right are
1 is spare.
2 Connects to live line of the compressor.
3 Connects water valve. Measurement of this point and null line gives the operating
voltage (AC 220V) of the water valve.
4 Connects to water valve of icemaker. Measurement of this point and null line gives the
operating voltage (AC 220V) of the water valve of icemaker.
5 Connects to water valve of dispenser. Measurement of this point and null line gives
the operating voltage (AC 220V) of the water valve of dispenser
6 is null line.
CN11 parts from left to right are,
1 Connects to L of the power filter board.
2-4 Connects to fridge door switch.. Measurement of this point and null line gives the
operation voltage (DC 220V) of fridge lighting;
3 Connects to N of the power filter board.
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