40
Phone Calls From Customers
How to Respond
Note
This is not a malfunction.
This may occur when the operation gets started in
the room of high humidity.
A white mist is expelled from the indoor unit.
Cooling; when pipes or piping joints are cooled, they
get sweated and water drips down.
Heating; water drips down from the heat exchanger.
* Make use of optional parts “Drain Socket” and
“Drain pan” if these water needs to be collected and
drained out for once.
Water or moisture is expelled from the outdoor
unit.
Batteries are being exhausted. Replace them and
press the reset button of remote controller.
The display of wireless remote controller gets dim
or doesn not come on.
The indoor unit does not receive a signal from
remote controller at a long distance.
10-5. HOW TO CHECK THE PARTS
PUHZ-SW75VHA(-BS).UK
PUHZ-SW100VHA(-BS).UK PUHZ-SW120VHA(-BS).UK
PUHZ-SW100YHA(-BS).UK PUHZ-SW120YHA(-BS).UK
1
2
3
4
5
M
Gray
Orange
Red
Yellow
Black
Parts name
Check points
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature 10
- 30
)
Thermistor (TH3)
<Liquid>
Thermistor (TH4)
<Discharge>
Thermistor (TH6)
<2-phase pipe>
Thermistor (TH7)
<Ambient>
Thermistor (TH8)
<Heatsink>
Thermistor (TH34)
<Comp. surface>
160k
- 410k
4.3k
- 9.6k
TH4
TH34
TH3
TH6
TH7
TH8
Abnormal
Open or short
Measure the resistance between the terminals with a tester.
(At the ambient temperature 20
)
Solenoid valve coil
<Four-way valve>
(21S4)
Motor for compressor
(MC)
Linear expansion valve
(LEV-A/LEV-B/LEV-C)
Normal
Abnormal
Open or short
Disconnect the connector then measure the resistance with a tester.
(Winding temperature 20
)
Normal
Gray - Black
Gray - Red
Gray - Yellow
Gray - Orange
Abnormal
46
$
3
Open or short
Refer to next page.
Fan motor
(MF1,MF2)
SW100/120Y
SW100/120V
0.19
0.30
Measure the resistance between the terminals with a tester.
(Winding temperature 20
)
Normal
Abnormal
Open or short
W
V
U
1435
$
150
SW75V
0.88
Normal
39k
- 105k
OCH533A
