haier WQP4-2000N - Manual (Page 13)

KNOK
TROUBLESHOOTING AND MAINTENANCE SERVICE
When alarm signal occurs
1)Shut off the power supply and the pilot lamp goes off and the buzzer stops.
2)Make troubleshooting according to the following information.
Disorder Possible causes Trouble shooting
The indicators illu-minate
and the buzzer buzzes.
No water supply
* The tap is turned off.
* There is no water in the pipe.
* The pipe is blocked.
* The water pressure is too low.
* Turn on the tap.
* Shut off the power supply. Wash the
dishes when there is water supply.
* Clean the pipe.
* Water about 1minute.
The indicators illu-minate
and the buzzer buzzes.
The indicators illu-minate
and the buzzer buzzes.
Little drain water
* The drainage pipe is twisted, blocked and no drainage.
* The filter screen is dirty.
* Part of the drainage pipe is 10cm higher than the
operation surface.
* Arrange the drainage pipe.
* Lower the drainage pipe.
* Take out the filter and clean it.
Improper lock
* The door is not closed properly.
* The door is opened during operation.
* Lock the door properly.
* Closed the door.
Other illuminate of pilot
lamp and buzzer alarm.
* Malfunction of the control system. * Contact service center.
3)Do not operate the unit until it becomes normal.
4)If abnormal phenomena occur once more, take off the plug and make contact with the local
after-sales service center or maintenance department.
Power failure, ice up or water failure
Power failure
Ice up
Water failure
* Turn off the power switch. Operate it when power resumes.
* Fill warm water (below 31-70
°
C)to melt the ice.
If the hot water pipe and the draining hose are frozen, melt them with warm water.
After ice melts, select "flush"program to make an operation to make sure it is OK.
* If water fails during operation. Cut off the power to stop operation.
When water comes again, restart the machine.
Select "flush"program to drain out dirty water.
Then begin to wash.