Haier HT1006TXVE, Service Manual

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Troubleshooting
１８
S/N
Possible
Malfunctions Possible
causes
Checking Steps Instrument Solutions
1. Check whether the tap is
open.
Eyeballing
If normal, go on with the next
step.
2. Check whether the water
pressure is too low.
Eyeballing
If normal, go on with the next
step.
3. Check whether the
electromagnetic valve is well
linked.
Eyeballing
If normal, go on with the next
step.
4. Check whether the
pressure switch is well linked.
Eyeballing
If normal, go on with the next
step.
5. Check whether the
pressure switch hose leaks
gas or not.
Eyeballing
Blowing If normal, go on with the next
step.
6. Check whether the
electromagnetic valve is
damaged.
Check by
hand
Eyeballing
Multimeter
If normal, go on with the next
step.
7. Check whether the
pressure switch is damaged. Eyeballing
Multimeter If normal, go on with the next
step.
9 Err5 Alarm
The water
switch does
not move
within 8
minutes.
8. Check whether the relevant
wiring harness is broken. Eyeballing
Multimeter If normal, change power
drive board.
1. Check whether the motor is
well linked.
Eyeballing
If normal, go on with the next
step.
2. Check whether the motor is
damaged ( or over-heated ). Eyeballing
Multimeter If normal, go on with the next
step.
10
Err6, Err7,
FErr Alarm The motor is
broken.
3. Check whether the relevant
wiring harness is broken. Eyeballing
Multimeter If normal, change power
drive board.
1. Check whether the
drainage pump is well linked.
Eyeballing
If normal, go on with the next
step.
2. Check whether the
drainage pump is damaged
(short circuit inside).
Eyeballing
Multimeter If normal, go on with the next
step.
3. Check whether the
pressure switch is well linked.
Eyeballing
If normal, go on with the next
step.
4. Check whether the
pressure switch is damaged. Eyeballing
Multimeter If normal, go on with the next
step.
5. Check whether the
pressure switch hose leaks
gas or not.
Eyeballing
Blowing If normal, go on with the next
step.
11 Err8 Alarm
The water
level is over
the
protecting
water level.
6. Check whether the relevant
wiring harness is broken. Eyeballing
Multimeter If normal, change power
drive board.