Panasonic S-M20PY3E Installation Instructions Manual page 78

ON: Blinking: OFF:
Wireless remote
controller
receiver display
Abnormal
display
L04
L10
Operating
and standby
lamps blinking
L13
simultaneously
L18
P03
P04
Operating
and standby
lamp blinking
alternately
P05
P07
Timer and
P13
standby
lamp blinking
alternately
P14
P15
P16
Operating
and standby
lamp blinking
P22
alternately
P29
P31
* 3-Line : Connection cable between outdoor and indoor unit
2-Line : Inter-unit control wiring
Alarm contents
Duplication of outdoor unit address
Outdoor unit capacity is not set or setting error
Indoor unit type setting error
Type of indoor / outdoor units is different
4-way valve locked trouble / operation failure
Compressor discharge temperature trouble
Condensing pressure trouble
Compressor discharge pressure trouble
Open phase detected
AC power supply trouble
HIC (IPM) temperature trouble
Valve error
Refrigerant circuit error
Wrong installation for refrigerant piping and wiring
O sensor detected
2
Insufficient gas level detected
Compressor overcurrent trouble
Outdoor unit fan motor trouble
Outdoor unit fan trouble
Inverter compressor trouble
Indoor unit in group control trouble
• Check the indoor / outdoor control line *
• Replace the outdoor unit EEPROM
• Capacity value re-setting
• Replace the indoor unit EEPROM
• Check the outdoor unit control PCB
• Check the type of IU and OU, and re-set address
• Check the 4-way valve
• Check the 4-way valve wiring
• Check the outdoor unit control PCB
• Check the refrigerant cycle (gas leak)
• Trouble with the electronic expansion valve
• Check the discharge temperature sensor (TD)
• Check the refrigerant cycle
• Valve blockage
• Heat exchanger obstruction
• Check the power supply
• Check the reactor wiring
• Check the outdoor unit control PCB
• Check the compressor wiring
• Check the outdoor unit control PCB
• Check the HIC
• Compressor locked
• Valve blockage
• Valve blockage
• Check the refrigerant circuit
• Check the refrigerant piping and wiring installation
• Input from the O
• Check the refrigerant cycle (gas leak)
• Trouble with the electronic expansion valve
• Valve (or refrigerant circuit) blockage
• Layer short on the compressor
• Compressor locked
• Check the outdoor unit control PCB
• Check the outdoor unit fan motor, connector
• Check the outdoor unit control PCB
• Layer short on the compressor
• Check the outdoor unit control PCB
• Check the inverter compressor wiring (Open phase /
Reverse phase)
• Compressor actuation failure (include lock)
• Valve (or refrigerant circuit) blockage
• Repair indoor unit which blinking alarm
78
Error location
sensor
2