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(Check code detected by Inverter of Compressor featuring in outdoor unit - typical examples)
Indoor unit (including Hot Water Module)
Note: The above check codes are examples only, and different check codes may be displayed depending on the outdoor unit configuration
Check code
Typical problem site Description of proplem
Outdoor 7-segment display
Central
control or
main remote
controller
display
Sub-code
F13 F13
1∗: Compressor 1
2∗: Compressor 2
Trouble in temperature
sensor built into
indoor IPM (TH)
Temperature sensor built into indoor IPM (TH)
has been open/short-circuited.
H01 H01
1∗: Compressor 1
2∗: Compressor 2
Inverter current (Idc) detection circuit detects
overcurrent.
H02
1∗: Compressor 1
2∗: Compressor 2
H02
Compressor trouble
(lockup)
Compressor lockup is detected
H03
1∗: Compressor 1
2∗: Compressor 2
H03
Current detection circuit
trouble
Abnormal current is detected while inverter
compressor is turned off.
H17
1∗: Compressor 1
2∗: Compressor 2
Compressor trouble
(Step-out)
Judged that the synchronization could not be
taken.
H17
P22 P22
Compressor breakdown
Outdoor fan P.C. board
trouble
1∗: Fan P.C. board 1
2∗: Fan P.C. board 2
Outdoor fan P.C. board detects trouble.
P26
1∗: Compressor 1
2∗: Compressor 2
Activation of IPM,
compressor short-circuit
protection
Short-circuit protection for compressor motor
driver circuit components is activated (momentary
overcurrent).
P29
P26
P29
1∗: Compressor 1
2∗: Compressor 2
Compressor position
detection circuit trouble
Compressor motor position detection trouble is
detected.
P11 –
Outdoor heat exchanger
freeze trouble
Remaining frost on outdoor heat exchanger
has been detected repeatedly.
P11
P05
1∗: Compressor 1
2∗: Compressor 2
Compressor Vdc trouble
Inverter DC voltage is too high (overvoltage)
or too low (undervoltage).
P05
P07
1∗: Compressor 1
2∗: Compressor 2
Heat sink overheat trouble
Temperature sensor built into IPM (TH) detects
overheating.
P07
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