Panasonic S-M20PY3E Installation Instructions Manual page 77

ON: Blinking: OFF:
Wireless remote
controller
receiver display
Abnormal
display
P01
P09
Timer and
standby
lamp blinking
P10 alternately
P11
P12
Standby lamp
blinking
E06
E12 Operating lamp
blinking
E14
E15
Standby lamp
E16
blinking
E20
E24
E29
F04
F06
F07
Operating and
timer lamp blinking
alternately
F08
F12
F23
F24
F31
H01
H02
Timer lamp
blinking
H03
H31
* 3-Line : Connection cable between outdoor and indoor unit
2-Line : Inter-unit control wiring
Alarm contents
Indoor unit fan motor locked
Indoor unit fan motor layer short
Contact failure in thermostat protector circuit
Faulty wiring connections of (ceiling) indoor unit panel
Faulty drain pump
Drainage failure
Contact failure of float switch wiring
High water alarm for the case of Middle static pressure
duct (PF) model installed vertically
Faulty drain pump
Drain pump locked
Indoor unit fan motor locked
Faulty wiring connections of indoor unit fan motor
Disconnection / Contact failure of indoor / outdoor control
line *
• Disconnection of indoor / outdoor control line *
• Communication circuit fuse (F302) on indoor unit control
PCB (sub) opened
Indoor unit control PCB address settings error
Auto address setting start is prohibited
Duplication of main unit in group control
The total capacity of indoor units is too low
Auto
The total capacity of indoor units is too high
address
The number of indoor units is too many
alarm
No indoor unit connected
• Outdoor unit communication error
• Outdoor unit communication error
Compressor discharge temperature sensor (TD) trouble
Outdoor heat exchanger temperature sensor (C1) trouble
Outdoor heat exchanger temperature sensor (C2) trouble
Outdoor air temperature sensor (TO) trouble
Compressor suction temperature sensor (TS) trouble
Outdoor gas pipe temperature sensor trouble
Outdoor liquid pipe temperature sensor trouble
Outdoor unit EEPROM trouble
Primary (input) overcurrent detected
PAM trouble
Primary current CT sensor failure
HIC trouble
DC voltage not detected
• Remove the cause
• Replace the fan motor
• Correct the wiring
• Correct the wiring connection
• Correct insertion direction of connector (Hook is outside.)
• Repair / Replace
• Correct
• Correct the wiring
• Change the setting
• Repair / Replace
• Remove the cause
• Remove the cause
• Correct the wiring
• Correct the indoor / outdoor control line *
Check the electrical connection of fuse (F302) on indoor
unit control PCB (sub)
In the case of the fuse opened on an indoor unit control
PCB (sub), after correcting wiring connection, it substitutes
an EMG plug for OC plug
• Indoor unit address re-setting
• Check the indoor / outdoor control line *
• Check the indoor / outdoor control line *
• Check the indoor unit combination
• Check the indoor / outdoor control line *
• Check the indoor and outdoor unit control PCB
• Check the power supply
• Capacity and address re-setting after correcting the
combination of units
• Check the outdoor unit control PCB
• Check the outdoor unit control PCB
• Check the compressor discharge temperature sensor (TD)
• Check the outdoor unit control PCB
• Check the outdoor unit heat exchanger temperature
sensor (C1)
• Check the outdoor unit control PCB
• Check the outdoor unit heat exchanger temperature
sensor (C2)
• Check the outdoor unit control PCB
• Check the outdoor air temperature sensor (TO)
• Check the outdoor unit control PCB
• Check the compressor suction temperature sensor (TS)
• Check the outdoor unit control PCB
• Check the outdoor gas pipe temperature sensor
• Check the outdoor unit control PCB
• Check the outdoor liquid pipe temperature sensor
• Check the outdoor unit control PCB
• Check the outdoor unit EEPROM
• Check the outdoor unit control PCB
• Check the refrigerant cycle (abnormal overload operation)
• Check the outdoor unit control PCB
• Check the power supply
• Check the outdoor unit control PCB
• Compressor locked
• Check the power supply
• Check the outdoor unit control PCB
• Check the power supply
• Check the outdoor unit control PCB
• Check the HIC
• Compressor locked
• Valve blockage
77
Error location