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FILE NO. SVM-13085
L30
L30
L31
Detected indoor
address
Indoor
unit
External
interlock of
indoor unit
Stop of
corresponding
unit
Signal is present at
external error input
terminal (CN80) for 1
minute.
When external device is
connected to CN80, (CN4)
connector:
1) Check for defect in
external device.
2) Check for defect in indoor
P.C. board.
When external device is not
connected to CN80, (CN4)
connector:
3) When input the signal to
Application control kit
(TCB-PCUC1E (CN4)) for
1 minute.
1) Check for defect in indoor
P.C. board.
I/F
Extended IC
error
Continued
operation
There is part failure in P.C.
board (I/F).
Check outdoor P.C. board
(I/F).
P03
P03
I/F
Discharge
temperature
TD1 error
All stop
Discharge temperature (TD1)
exceeds 115 ”C.
Check outdoor service
valves (gas side, liquid
side) to confirm full
opening.
Check outdoor PMVs
(PMV1, 2, 4) for clogging.
Check resistance
characteristics of TD1
sensor.
Check for insufficiency in
refrigerant quantity.
Check for defect in 4-way
valve.
Check for leakage of SV4
circuit.
Check SV4 circuit (wiring
or installation error in
SV41, SV42 or SV43).
P04
P04
01: Compressor
1 side
02: Compressor
2 side
03: Compressor
3 side
IPDU
Activation of
high-pressure
SW
All stop
High-pressure SW is
activated.
Check connection of high-
pressure SW connector.
Check for defect in Pd
pressure sensor.
Check outdoor service
valves (gas side, liquid
side) to confirm full
opening.
Check for defect in outdoor
fan.
Check for defect in outdoor
fan motor.
Check outdoor PMVs
(PMV1, 2) for clogging.
Check indoor / outdoor
heat exchangers for
clogging.
Check for short-circuiting
of outdoor suction /
discharge air flows.
Check SV2 circuit for
clogging.
Check for defect in outdoor
P.C. board (I/F).
Check for error in indoor
fan system (possible cause
of air flow reduction).
Check opening status of
indoor PMV.
Check indoor-outdoor
communication line for
wiring error.
Check for faulty operation
of check valve in discharge
pipe convergent section.
Check gas balancing SV4
valve circuit.
Check SV5 valve circuit.
Check for refrigerant
overcharging.
Check code
Location
of
detection
Description
System status
Error detection
condition(s)
Check items (locations)
Outdoor 7-segment display
Sub-code
Check
code
Main
remote
controller
SVM-13085.indb 78
SVM-13085.indb 78
12/24/13 10:56 AM
12/24/13 10:56 AM