– 107 –
Check
code
Outdoor
LED display
Check and troubleshooting
(Item without special mention indicates part of outdoor unit.)
[1C]
(Continue
d)
[A room gas side temp. sensor (TGa) error]
[B room gas side temp. sensor (TGb) error]
[C room gas side temp. sensor (TGc) error]
[Gas leak detection, PMV error]
YES
NO
Is connection of CN604
on P.C.B MCC-5071 correct?
Is resistance value of TGa sensor correct?
Correct connector.
Sensor error
→
Replace.
Check outdoor P.C.B. MCC-5071.
Defect
→
Replace.
YES
NO
Is connection of CN605
on P.C.B MCC-5071 correct?
Is resistance value of TGb sensor correct?
Correct connector.
Sensor error
→
Replace.
Check outdoor P.C.B. MCC-5071.
Defect
→
Replace.
YES
NO
Is connection of CN606
on P.C.B MCC-5071 correct?
Is resistance value of TGc sensor correct?
Correct connector.
Sensor error
→
Replace.
Check outdoor P.C.B. MCC-5071.
Defect
→
Replace.
YES
NO
Is there gas leak?
Is there refrigerant shortage?
Repair defective position.
Recharge refrigerant.
Open service valve fully.
Is service valve fully opened?
Is PMV under correct conditions?
Is there crushed pipe?
Check temp. sensor.
TS, TE, TG, TC
Correct defective position.
Replace defective part.
Correct and replace piping.
Correct connector.
Sensor error
→
Replace.
Check outdoor P.C.B. MCC-5071.
Defect
→
Replace
YES
YES
YES
NO
NO
NO
OK
Error