Toshiba MMW-AP0271LQ-E Service Manual page 49

Check code
Main Outdoor 7-segment display
remote
Check
Sub-code
controller
code
F03 — —
F04 F04 —
F05 F05 —
01:
TE1 sensor
error
F06 F06
02:
TE2 sensor
error
F07 F07 —
F08 F08 —
F10 — —
F11 — —
F12 F12 —
01: Compressor
1 side
02: Compressor
F13 F13
2 side
03: Compressor
3 side
Location
Description
of
detection
Indoor Indoor TC1
unit sensor error
I/F TD1 sensor
error
I/F TD2 sensor
error
I/F TE1/TE2
sensor error
I/F TL sensor error All stop
I/F TO sensor error All stop
Indoor unit Indoor TA
sensor error
Indoor unit Indoor TF
sensor error
I/F TS1 sensor
error
IPDU TH sensor error All stop
Error detection
System status
condition(s)
Stop of Sensor resistance is infinity
corresponding unit or zero (open / short circuit).
All stop Sensor resistance is infinity
or zero (open / short circuit).
All stop Sensor resistance is infinity
or zero (open / short circuit).
All stop Sensor resistance is infinity
or zero (open / short circuit).
Sensor resistance is infinity
or zero (open / short circuit).
Sensor resistance is infinity
or zero (open / short circuit).
Stop of Sensor resistance is infinity
corresponding unit or zero (open / short circuit).
Stop of Sensor resistance is infinity
corresponding unit or zero (open / short circuit).
All stop Sensor resistance is infinity
or zero (open / short circuit).
Sensor resistance is infinity
or zero (open / short circuit).
– 49 –
Indoor unit (including Hot Water Module)
Check items (locations)
• Check connection of TC1
sensor connector and
wiring.
• Check resistance
characteristics of TC1
sensor.
• Check for defect in indoor
P.C. board.
• Check connection of TD1
sensor connector.
• Check resistance
characteristics of TD1
sensor.
• Check for defect in outdoor
P.C. board (I/F).
• Check connection of TD2
sensor connector.
• Check resistance
characteristics of TD2
sensor.
• Check for defect in outdoor
P.C. board (I/F).
• Check connection of TE1/
TE2 sensor connectors.
• Check resistance
characteristics of TE1/TE2
sensors.
• Check for defect in outdoor
P.C. board (I/F).
• Check connection of TL
sensor connector.
• Check resistance
characteristics of TL
sensor.
• Check for defect in outdoor
P.C. board (I/F).
• Check connection of TO
sensor connector.
• Check resistance
characteristics of TO
sensor.
• Check for defect in outdoor
P.C. board (I/F).
• Check connection of TA
sensor connector and
wiring.
• Check resistance
characteristics of TA
sensor.
• Check for defect in indoor
P.C. board.
• Check connection of TF
sensor connector and
wiring.
• Check resistance
characteristics of TF
sensor.
• Check for defect in indoor
P.C. board.
• Check connection of TS1
sensor connector.
• Check resistance
characteristics of TS1
sensor.
• Check for defect in outdoor
P.C. board (I/F).
• Defect in IGBT built-in
temperature sensor
Replace A3-IPDU P.C.
board.