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Using indoor unit indicators (receiving unit light block) (wireless type)
To identify the check code, check the 7-segment display on the outdoor unit. To check for check codes not
displayed on the 7-segment display, consult the "List of Check Codes (Indoor Unit)" in "9-2. Troubleshooting
method".
L
g i
t h
b
o l
c
k
Operation
Timer
Ready
All lights out
Operation
Timer
Ready
Blinking
Operation
Timer
Ready
Blinking
Operation
Timer
Ready
Alternate blinking
Operation
Timer
Ready
Alternate blinking
Operation
Timer
Ready
Alternate blinking
AMP Air Conditioning
C
h
e
c
k
c
o
d
e
–
Power turned off or error in wiring between receiving and indoor units
E01
Troubled reception
E02
Troubled transmission
E03
Loss of communication
E08
Duplicated indoor unit No. (address)
E09
Duplicated master remote controller
E10
Indoor unit inter-MCU communication trouble
E12
Automatic address starting trouble
E18
Trouble or poor contact in wiring between indoor units, indoor power turned off
Error or poor contact in wiring between indoor and outdoor units
E04
(loss of indoor-outdoor communication)
E06
Troubled reception in indoor-outdoor communication (dropping out of indoor unit)
E07
Troubled transmission in indoor-outdoor communication
E15
Indoor unit not found during automatic address setting
E16
Too many indoor units connected / overloading
E20
Detection of refrigerant piping communication trouble during automatic address setting
E31
IPDU communication trouble
P01
Indoor AC fan motor trouble
P10
Indoor overflow trouble
P12
Indoor DC fan motor trouble
P13
Outdoor liquid backflow detection trouble
P03
Outdoor discharge (TD) temperature trouble
P04
Outdoor unit High-pressure SW is activated.
Open phase / power failure
P05
Inverter DC voltage (Vdc) trouble
P07
Outdoor heat sink overheating trouble - Poor cooling of electrical component (IGBT) of outdoor unit
P15
Gas leak detection - insufficient refrigerant charging
P19
Outdoor 4-way valve reversing trouble
P20
Activation of high-pressure protection
P22
Outdoor fan IPDU trouble
P26
Outdoor G-Tr short-circuit trouble
P29
Compressor position detection circuit trouble
P31
Shutdown of other indoor unit in group due to trouble (group follower unit trouble)
F01
Heat exchanger temperature sensor (TCJ) trouble
F02
Heat exchanger temperature sensor (TC2) trouble
F03
Heat exchanger temperature sensor (TC1) trouble
F10
Ambient temperature sensor (TA) trouble
F11
Discharge temperature sensor (TF) trouble
: Goes off
: Lighting
C
a
u
s
e
f o
check code
Receiving unit
105
116
www.ampair.co.uk | sales@ampair.co.uk
: Blinking (0.5 seconds)
trouble or poor contact in wiring
between receiving and indoor units
Setting error
Indoor unit temperature sensor troubles
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Table of Contents
Troubleshooting
