Toshiba MMW-UP0271LQ-E Service Manual page 51

(Check code detected by Inverter of Compressor featuring in outdoor unit - typical examples)
Check code
Outdoor 7-segment display
Sub-code
1∗: Compressor 1
F13
2∗: Compressor 2
1∗: Compressor 1
H01
2∗: Compressor 2
1∗: Compressor 1
H02
2∗: Compressor 2
1∗: Compressor 1
H03
2∗: Compressor 2
1∗: Compressor 1
H17
2∗: Compressor 2
1∗: Compressor 1
P05
2∗: Compressor 2
1∗: Compressor 1
P07
2∗: Compressor 2
P11 –
1∗: Fan P.C. board 1
P22
2∗: Fan P.C. board 2
1∗: Compressor 1
P26
2∗: Compressor 2
1∗: Compressor 1
P29
2∗: Compressor 2
Note: The above check codes are examples only, and different check codes may be displayed depending on the outdoor unit configuration
Central
Typical problem site
control or
main remote
controller
display
Trouble in temperature
F13 sensor built into
indoor IPM (TH)
H01 Compressor breakdown
Compressor trouble
H02
(lockup)
Current detection circuit
H03
trouble
Compressor trouble
H17
(Step-out)
P05 Compressor Vdc trouble
P07 Heat sink overheat trouble
Outdoor heat exchanger
P11
freeze trouble
Outdoor fan P.C. board
P22
trouble
Activation of IPM,
P26
compressor short-circuit
protection
Compressor position
P29
detection circuit trouble
– 51 –
Indoor unit (including Hot Water Module)
Description of proplem
Temperature sensor built into indoor IPM (TH)
has been open/short-circuited.
Inverter current (Idc) detection circuit detects
overcurrent.
Compressor lockup is detected
Abnormal current is detected while inverter
compressor is turned off.
Judged that the synchronization could not be
taken.
Inverter DC voltage is too high (overvoltage)
or too low (undervoltage).
Temperature sensor built into IPM (TH) detects
overheating.
Remaining frost on outdoor heat exchanger
has been detected repeatedly.
Outdoor fan P.C. board detects trouble.
Short-circuit protection for compressor motor
driver circuit components is activated (momentary
overcurrent).
Compressor motor position detection trouble is
detected.