104
P15
Detection of gas leak
When the discharge temperature sensor
(TD) exceeds 106°C for consecutive 10
min.
When the suction temperature sensor
(TS) exceeds 60°C for cooling or 40°C
for heating for 10 consecutive min.
When TG
≤ TC -10 K is detected and
TG
≤ TWI-15 K is detected 10min. (hot
water supply, heating)
When TG
≤ TE -12 K is detected for
10min. (cooling)
O
×
1. Check the refrigeration cycle (gas
leak).
2. Check that the service valve is fully
open.
3. Defect of the pulse motor valve.
4. Check for kinked piping.
5. Check the resistance value of the
discharge temperature sensor (TD)
and the suction temperature sensor
(TS).
6. Check the PD sensor by remote
controller.
8131
P19
The 4-way valve inversion error
When the heat exchange temperature
sensor (TE) exceeds 30°C or the suction
temperature sensor (TS) exceeds 50°C
during the heat pump operation.
O
×
1. Check the operation of the 4-way
valve unit or the coil characteristics.
2. Defect of the pulse motor valve.
3. Check the resistance value of the
heat exchange temperature sensor
(TE) and the suction temperature
sensor (TS).
4132
P20
High pressure protection operation
When an abnormal stop occurs due to
the high pressure release control.
When the high pressure sensor (PD)
detects 4.19 MPa.
O
×
1. Check that the service valve is fully
open.
2. Defect of the pulse motor valve.
3. Check the outdoor fan system
(including clogging).
4. Over-filling of refrigerant.
5. Check the value of the high pressure
sensor (PD).
6. The water piping is too short.
Install a buffer tank, or set the setting
temperature lower.
10 133
P22
Outdoor fan system error
When a DC fan rotor position detection
NG, element short circuit, loss of
synchronization, or abnormal motor
current occurs.
O
×
1. Check the lock status of the motor
fan.
2. Check the connection of the fan
motor cable connector.
3. Check the power supply voltage.
(AC220~240 V±10%)
8134
P26
Short circuit of the compressor driver
element error
When an abnormal short circuit of IGBT
is detected.
O
×
1. P26 abnormality occurs when
operating with the compressor
wiring disconnected … Check the
outdoor control board.
2. No abnormality occurs when
operating with the compressor
wiring disconnected … Compressor
rare short.
8134
P29
Compressor rotor position error
The rotor position in the compressor
cannot be detected.
O
×
1. Even if the connection lead wire of
the compressor is disconnected, it
stops due to an abnormality in the
position detection … Replace the
outdoor control board.
2. Check the wire wound resistor of the
compressor. Short circuit
… Replace the compressor.
8134
Check code: H04, P04, P29
After the error is detected, It takes approximately 40 ~ 50 minutes while the error code is displayed on the remote controller.
Check
code
Diagnostic functional operation
Determination and action
Number of
abnormalities
for
confirmation
Detailed
item
Operational cause
Backup
operation
Automatic
reset
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