Panasonic 2WAY Multi Technical & Service Manual page 13

Indoor unit ceiling panel connector connection failure
Indoor protection
devices
Outdoor protection
devices
Group control's sub unit error (system controller)
Group control error (alarm)
Oil change time (level) alarm
Automatic backup operation (*2)
Backup operating display without power generation when the
converter is abnomal
When the water heat exchanger unit is connected in the table above, please replace indoor unit with water
heat exchanger unit for the alarm.
*1: If the indoor nonvolatile memory (EEPROM) is faulty when the power supply is turned on, Alarm code F29 is not indicated,
but the power source LED on the indoor board starts to fl icker.
*2: In this case, operation of the system is possible, but one of the outdoor units is detected to have stopped abnormally.
● Alarm P30 (group controlled device fault) is sometimes displayed at the system controller.
Detection Item
Indoor fan error / indoor fan rpm error
Indoor unit fl oat switch operation
Indoor DC fan error
High compressor discharge temperature
Refrigerant high-pressure switch
operation
Power source error
Refrigerant circuit error
(for only W MULTI and 3WAY MULTI)
O sensor operation
2
Complete refrigerant gas depletion
Bypass valve error
4-way valve lock error
(not detected 3WAY MULTI)
Refrigerant high-pressure error
Outdoor fan error
Clutch connection error
Outdoor display: oiL
: Flashing
Warning Wireless Remote Control
Display
P09 Operating
P01
P10
P12
P03
P04
P05
P13
P14
Operating
P15
P18
P19
P20
P22
P26
P30
P31
Oil check
check
GE
Note: Some items are not indicated, depending in model.
III–4
: Lit
Device
Lamp Display Checked
Timer Wait...
Indoor unit
Alternate flashing
Timer Wait...
Outdoor unit
Alternate flashing
System
controller
Indoor unit
Outdoor unit
: Off