Check
code
Outdoor
LED display
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[P15]
[Gas leak detection]
Open service valve fully.
Correct and replace piping.
Correct connector.
Sensor error
→
Replace
Check outdoor P.C. board.
Defect
→
Replace
Correct defective position.
Replace defective part.
Repair defective position.
Recharge refrigerant.
Error
OK
NO
YES
YES
YES
YES
NO
NO
NO
Is there crushed pipe?
Is service valve fully opened?
Is PMV under correct condition?
Is there gas leak?
Is there refrigerant shortage?
Check temp. sensor.
TD sensor CN601, TS sensor CN603
–
60
–
SVM-13072.indb 66
SVM-13072.indb 66
11/01/13 1:53 PM
11/01/13 1:53 PM
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FILE NO. SVM-18042
-1
[4-way valve inverse error]
[P19]
Is operation of 4-way valve
correct?
(Check pipe temp. and etc. in
cooling/heating operation.)
NO
Are temperature sensors
correct?
TE sensor:
GM30
,
4
0 : CN6
1
TS sensor:
G
M
30
,
4
0 : CN6
4
NO
YES
YES
NO
YES
Are resistance value of
indoor TC and TCJ
sensors correct?
Check and
replace of PMV
Replace TE sensor.
Replace TS sensor.
Replace coil
of 4-way valve.
Replace TC sensor
Replace TCJ sensor
Is the 4-way valve
coil is normal?
(Check the resistance value
of 4-way valve coil)
Does power supply to
4-way valve coil when
4-way valve is operated?
Check outdoor
P.C. board.
Check indoor P.C. board.
Defect
→
Replace
Check 4-way valve.
Defect
→
Replace
Check outdoor
P.C. board.
Defect
→
Replace
NO
YES
OK
Error
YES
NO
NO
Is refrigerant flow by
PMV correct?
YES
—