Haier DW-40W100, Service Manual, Page: 8 / 21

Task Control Principle & Parameters
1. Control Principle & Functions:
This freezer adopts an electronically temperature control system controlled by the Carel temperature
controller.
Temperature controller panel & wiring diagram
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Temperature Controller Panel
Temperature Controller Wiring Diagram
Debug Methods of the temperature controller:
Serial
No.
Button Operation Display
1 Press the button “Set” for about 2 seconds To display the initially set
temperature of -30
2 If “-30” is not displayed , press “Up ▲ ” / “Down ▼ ”for resetting. To display: -30
3 Press the button “Set” To display the current internal
temperature
4 After check of the set temperature, it is still necessary to check the setting of other parameters.
5 To display the current internal
temperature
6 Press the button “Set” for at least 5 seconds To display: a flashing “PS”
7 Press the button “Set” To display: 0
8 ▲ By pressing the button “Up ▲ ” To display: 22
9 Press the button “Set” To display: PS
10 By pressing the button “Up ▲ ” To display: /C1
11 Press the button “Set” To display: 0
12 If “0” is not displayed , press “Up ▲ ” / “Down ▼ ”for resetting. To display: 0
13 Press the button “Set” To display: /C1
14 By pressing the button “Up ▲ ” To display: /4
15 Press the button “Set” To display: 1
16 If“1”it is not displayed , press “Up ▲ ” / “Down ▼ ”for resetting. To display: 1
17 Press the button “Set” To display: /4
compressor
Power supply Probe
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