Toshiba MMY-SAP0806HT8P-E Service Manual page 151

Check code
Outdoor 7-segment display
Main
remote
Check
Sub-code
controller
code
10:Element short circuit
11:Position detection circuit
trouble
13:Motor lock trouble
P22 P22
14:Motor current trouble
1C:TH sensor
temperature trouble
1D:TH sensor short
circuit/release trouble
1E:Vdc voltage trouble
01: Compressor 1 side
02: Compressor 2 side
P26 P26
01: Compressor 1 side
02: Compressor 2 side
P29 P29
P31 – –
Location
of Description System status
detection
Outdoor fan
IPDU
All stop
IPDU trouble
All stop
All stop
All stop
All stop
All stop
All stop
IPM short-
IPDU All stop
circuit protection
trouble
IPDU Compressor All stop
position
detection circuit
trouble
Indoor Other indoor Stop of
trouble
unit corresponding
(group follower unit
unit trouble)
- 151 -
Check code detection
Check items (locations)
condition(s)
(Sub code: 10)
Fan IPDU over current
protection circuit Check fan motor.
•
Flow of current equal to or
Check for trouble in fan
•
greater than the specified IPDU P.C. board.
value is detected during
startup of the fan.
(Sub code: 11)
• Check fan motor.
• Check connection of fan
Fan IPDU position
motor connector.
detection circuit Position
• Check for trouble in fan IPDU
detection is not going on
P.C. board.
normally.
(Sub code: 13)
Gusty wind, an obstruction,
• Check fan motor.
or another external factor
Check for trouble in fan
•
Speed estimation is not
IPDU P.C. board.
going on normally.
(Sub code: 14)
• Check fan motor.
Fan IPDU over current
• Check connection of fan
protection circuit
motor connector.
Flow of current equal to or
Check for trouble in fan
•
greater than the specified
IPDU P.C. board.
value is detected during
operation of the fan.
(Sub code: 1C)
Higher temperature than • Check fan motor.
• Check for trouble in fan
the specified value is
IPDU P.C. board
detected during operation
of the fan.
(Sub code: 1D)
• Check for trouble in
The resistance value of
fan IPDU P.C. board.
the sensor is infinite or
zero (open or short circuit).
• Check power voltage of
(Sub code: 1E)
the main power supply.
Fan IPDU DC voltage
Check for defect in fan IPDU
•
protection circuit
P.C. board.
The DC voltage higher or
• Check connection of fan
lower than the specified
IPDU P.C. board.
value is detected.
Overcurrent is momentarily • Check connector
detected during startup of connection and wiring on
compressor. A3-IPDU P.C. board.
Check for trouble in
•
compressor (layer short-
circuit).
Check for trouble in
•
outdoor P.C. board
(A3-IPDU).
Position detection is not
• Check wiring and
going on normally.
connector connection.
• Check for compressor
layer short-circuit.
• Check for trouble in A3-
IPDU P.C. board.
There is trouble in other
• Check indoor P.C. board.
indoor unit in group,
resulting in detection of
E07/L07/L03/L08.