Panasonic U-72MF2U9 Installation Instructions Manual page 57

Remote control display
P04
P05
P09
P10
P11
P12
P14
P15
P16
P17
P19
P22
P26
P29
P31
• Contents of alarm display on remote controller
For the remote controller, there are other alarm contents listed on the following table besides the alarm display on outdoor main
unit control P.C. board.
Wired remote
control display
<E01>
Remote controller is detecting error signal
from indoor unit.
<E02>
Controller does not respond to indoor unit.
<<E03>>
Indoor unit is detecting error signal from
E04
main outdoor unit.
Outdoor unit is detecting error signal from
E06
indoor unit.
E08
Improper setting of indoor unit or remote
controller.
<<E09>>
During auto address setting, number of
E12
connected units does not correspond to
E15
number set.
When turning on the power supply, number
E16 of connected units does not correspond to
number set.
E20
(Except R.C. address is "0.")
E24
E25
E26
E29
E31
Improper setting.
<<L02>>
<L03>
L05
L06
L07
L08
<<L09>>
L04
L10
L11
L17
Protection device activated. High pressure switch (63PH, 63PH1 or 63PH2) or compressor thermal
protector (49C1 / 49C2).
Open phase in power input is detected at HIC for 1st compressor.
Connection to the panel of indoor unit is not good.
Float switch of drain pan safety is activated.
Drain pump failure or locked rotor.
Indoor fan inverter protection control is activated.
Input detected at EXCT terminal on indoor PCB for refrigerant detector.
Open phase in power input is detected at HIC for 2nd compressor.
Overcurrent of 1st compressor on the secondary side of inverter circuit, or inverter failed to syncronize
with rotation.
2nd compressor discharge temperature too high.
Inverter for 2nd compressor failed to start or failed to syncronize with rotation.
Fan motor or inverter drive of outdoor unit has failure.
Overcurrent of 2nd compressor on the secondary side of inverter circuit, or inverter failed to syncronize
with rotation.
Inverter for 1st compressor failed to start or failed to syncronize with rotation.
Other indoor unit in group control has an alarm.
Alarm contents
Detected contents
Indoor unit does not respond to remote controller.
The remote controller is having error in sending serial
communication signal.
Outdoor unit does not respond to indoor unit.
Some indoor units does not respond to outdoor unit.
Indoor unit address is dupulicating.
Two or more remote controllers are set as main on R1-R2 link.
Auto Address failed to start.
Fewer indoor units are found in Auto Addressing than the setting
on outdoor PCB.
More indoor units are found in Auto Addressing than the setting
on outdoor PCB.
No indoor unit responded in Auto Addressing.
No response from sub outdoor unit.
The outdoor unit address is duplicating.
The number of responding outdoor units does not match with
the setting on the main outdoor unit.
No response from main outdoor unit.
Error in communication inside outdoor unit control box.
Indoor unit model does not match with the outdoor unit model.
(Multi-split/mini-split)
Two or more indoor units are set as main in group control.
Two or more indoor units are set as priority indoor unit.
Two or more indoor units are set as priority indoor unit.
Group control wiring is detected for indoor unit set as individual
control.
Indoor unit address is not set.
Capacity setting of indoor unit is not correct.
Duplicate system address setting on outdoor units.
Capacity setting of outdoor unit is not correct.
Incorrect wiring of remote group control wiring (in case of shared
solenoid valve kit)
Model mismatch between outdoor units in one refrigerant circuit.
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