Toshiba MCY-MHP0404HS(J)-E Service Manual page 103

(Errors detected by IPDU featuring in outdoor unit - typical examples)
Check code
Outdoor 7-segment display
Sub-code
F 1 3 –
H 0 1 –
H02 –
H03 –
P 0 7 –
*0: IGBT short circuit
*1: Position detection circuit trouble
*3: Motor lockup trouble
P22
*4: Motor current trouble
*C: TH sensor temperature trouble
*D: TH sensor short, release trouble
(*: Fan motor number)
P 2 6 –
P 2 9 –
Note: The above check codes are examples only, and different check codes may be displayed depending on the outdoor unit configuration
(e.g. a Super heat recovery multi system). For details, see the service manual for the outdoor unit.
Display of receiving unit
TCC-LINK Indicator light block
central control
or main remote
Operation Timer Ready
Flash
controller
display
F 1 3 A L T
H 0 1
H02
H03
P 0 7 A L T
P 2 2 A L T
P 2 6 A L T
P 2 9 A L T
102
113
Typical trouble site
Trouble in temperature
Temperature sensor built into indoor IGBT (TH)
sensor built into indoor
has been open / short-circuited.
IGBT (TH)
Inverter current (Idc) detection circuit detects
C o m p e r s s r o b e r a k d o w n
overcurrent.
Compressor trouble (lockup) Compressor lockup is detected.
Current detection circuit Abnormal current is detected while inverter
trouble compressor is turned off.
Heat sink overheating Temperature sensor built into IGBT (TH) detects
trouble overheating.
O u d t o r o a f n P I D U trouble O u d t o r o a f
Short-circuit protection for compressor motor
Activation of IGBT (IPM)
driver circuit components is activated (momentary
short-circuit protection
overcurrent).
Compressor position Compressor motor position detection trouble is
detection circuit trouble detected.
Description of check code
n P I D U d e e t c s t trouble.