Haier HRF328W2, Руководство по обслуживанию

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SERVICE MANUAL
Model: HRF328\368
22
Issue 2015-7-18
Rev.
Ref 1507S002V1
Chapter 8 Trouble shooting
8-1. Common problems and solutions
8-1-1 Symptom: the buzzer beeps to alarm
1) Test across pin 10 and pin 12 of CN1 on the main control panel. The 2 pins should be switched to
conduction when the door is closed and disconnected when the door is open.
2) If pin 10 and pin 12 of CN1 are disconnected in both cases, please remove the front decoration strip
to see if the door switch is still in the slot and direction of installation.
8-1-2 Symptom: neither displaying nor starting when powering on
Check:
1) Check if the power supply is connected properly.
2) Remove the main control panel and examine its back side carefully to see if there are solder skips or
open soldering;
3) Check if the connector of the refrigerator hinge is connected properly.
4) Verify the display panel to see if it is in OFF state. If so, please press key C on the display panel for
5 seconds to turn it on.
Solutions:
1) If there is dry soldering or open soldering on the control panel, change it with an electrical iron.
2) If any connector is not connected properly, replug it firmly.
3) Press and hold the button on the display panel for 5s to turn the refrigerator on.
8-1-4 Symptom: poor cooling effect accompanied by loud noise
Check:
1) Check if there is obvious abnormal sound.
Set the control panel on “T1” mode (refrer 4-3), and check if the cooling fan is operating normally.
2) If the cooling fan does not run, remove it and check if its connector and the cabinet connector are
connected properly. Test if there is approximately 12VDC voltage across pin 9 and pin10 of CN3. If
there is no 12VDC voltage, the main control panel can generally be determined to be malfunctioning.
If there is 12VDC voltage, the refrigerator fan can generally be determined to be malfunctioning.
3) If the fan rotates abnormally, the fan is malfunctioning.
Solutions:
（ 1 ） If there is apparent abnormal sound in the compartment, check if the fan is firmly fixed.
If any of these problems is found, please remove the fan and reinstall it properly.
（ 2 ） If the fan connector is not installed properly, disconnect the terminals and reinstall the connector 。
（
3
）
If the main control panel or the fan is malfunctioning, replace it
8-2 Examination and Solutions for Other Problems
Problems Causes Solutions
Water/moisture/frost in the freezer
Moisture accumulates
on the freezer inner
walls
z Hot and moist climate.
z
The door is not closed
tightly
z The door is opened too
frequently or for too long
time
z Accumulation of frost and moisture
accelerate in such climate.
z Make sure the freezer is level and there is
no food or container interfering with the
door
z Do not open the door so frequently
Water/moisture/frost on outside surface of the freezer