Toshiba MMU-AP0072H2UL-1 Service Manual page 83

(Check code detected by IPDU featuring in SMMS-e standard outdoor unit - typical examples)
Check code
Outdoor 7-segment display
Sub-code
01: Compressor 1
F13
02: Compressor 2
01: Compressor 1
H01
02: Compressor 2
01: Compressor 1
H02
02: Compressor 2
01: Compressor 1
H03
02: Compressor 2
01: Compressor 1
P04
02: Compressor 2
01: Compressor 1
P07
02: Compressor 2
#0:Element short circuit
#1:Position detection circuit trouble
#3:Motor lock trouble
#4:Motor current trouble
P22 #C:TH Sensor temperature trouble
#D:TH Sensor short circuit/release
trouble
#E:Vdc voltage trouble
∗Put in Fan IPDU No. in [#] mark
01: Compressor 1
P26
02: Compressor 2
01: Compressor 1
P29
02: Compressor 2
Note: The above check codes are examples only, and different check codes may be displayed depending on
the outdoor unit configuration
Display of receiving unit
TCC-LINK Indicator light block
central control
or main remote
Operation Timer Ready
Flash
control
display
F 1 3 A
H 0 1
H02
H03
P 0 4 A
P 0 7 A
P 2 2 A
P 2 6 A
P 2 9 A
Typical problem site
Trouble in temperature
Temperature sensor built into indoor IPM (TH)
L T sensor built into indoor
has been open/short-circuited.
IPM (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
Compressor lockup is detected
(lockup)
Current detection circuit Abnormal current is detected while inverter
trouble compressor is turned off.
Activation of high-pressure
L T High-pressure SW is activated.
SW
Temperature sensor built into IPM (TH) detects
Heat sink overheating
L T
overheating or has been short-circuited.
trouble
L T Outdoor fn IPDU trouble Outdoor fan IPDU detects trouble.
Short-circuit protection for compressor motor
Activation of IPM
L T driver circuit components is activated (momentary
short-circuit protection
overcurrent).
Compressor position Compressor motor position detection trouble is
L T
detection circuit trouble
detected.
83
Description of proplem