Panasonic CS-S12TKV Service Manual

121
15.4.25 F97 (Compressor Overheating)
Malfunction Decision Conditions
During operation of cooling, when compressor tank temperature data (112°C) is detected by the compressor tank
temperature sensor.
Malfunction Caused
 Refrigerant shortage (refrigerant leakage).
 2/3 way valve closed.
 Detection error due to faulty compressor tank temperature sensor.
Troubleshooting
When F97 indication happens
For safety reason and to prevent component
breakdown, always switch off the power
before remove and connect the component.
Replace the compressor tank
temperature sensor.
Repair the pipe flare or union nuts.
Reclaim and recharge refrigerant.
Open the 2/3 way valve.
Procedure complete
Check the compressor tank temperature
sensor.
Does it conform to the sensor
characteristic chart?
Capillary tube or dryer clogged?
Charge a specified amount of fresh
refrigerant.
2/3 way valve closed?
Check for gas leakage.
Is Oil oozing out from the 2/3 way valve?
Refrigerant cycle abnormality error
happens again?
YES
YES
YES
NO
NO
NO
NO
NO
Replace the capillary tube or dryer.
YES
Replace outdoor unit PCB
Replace outdoor unit compressor
YES
70
60
50
40
30
20
20 6040 80 100 120 140
10
0
Resistance (kΩ)
Compressor Temp. Sensor
(Thermistor) Characteristics
T
e
m
p
e
r
a
t
u
r
e
(
°
C
)
Caution

Panasonic CS-S12TKV Specifications

General

Brand	Panasonic
Model	CS-S12TKV
Category	Air Conditioner
Language	English