Toshiba MMY-MUP0801HT8P-TR Service Manual page 188

Check code
Main Outdoor 7-segment display
remote
Check
Sub-code
controller
code
F05 F05 —
01: TE1 sensor
trouble
02: TE2 sensor
trouble
F06 F06
03: TE3 sensor
trouble
01: TL1 sensor
trouble
02: TL2 sensor
F07 F07
trouble
03: TL3 sensor
trouble
F08 F08 —
01: TG1 sensor
trouble
02: TG2 sensor
F09 F09
trouble
03: TG3 sensor
trouble
F10 — —
F11 — —
01: TS1 sensor
trouble
03: TS3 sensor
F12 F12
trouble
04: TS3 sensor
disconnect
1∗: Compressor
1 side
F13 F13
2∗: Compressor
2 side
F15 F15 —
Location
Description System status
of
detection
I/F TD2 sensor All stop
trouble
I/F TE1/TE2/TE3 All stop
sensor trouble
I/F TL1/TL2/TL3 All stop
sensor trouble
I/F TO sensor All stop
trouble
I/F TG1/TG2/TG3 All stop
sensor trouble
Indoor unit Indoor TA Stop of
sensor trouble corresponding
unit
Indoor unit Indoor TF Stop of
sensor trouble corresponding
unit
I/F TS1/TS3 All stop
sensor trouble
Compressor TH sensor All stop
P.C. board trouble
I/F Outdoor All stop
temperature
sensor wiring
trouble (TE1,
TL1)
- 188 -
Check code detection
Check items (locations)
condition(s)
Sensor resistance is infinity • Check connection of TD2
or zero (open/short circuit). sensor connector.
• Check resistance
characteristics of TD2
sensor.
• Check for failure in outdoor
P.C. board (I/F).
Sensor resistance is infinity • Check connection of TE1/
or zero (open/short circuit). TE2/TE3 sensor
connectors.
• Check resistance
characteristics of TE1/TE2/
TE3 sensors.
• Check for failure in outdoor
P.C. board (I/F).
Sensor resistance is infinity • Check connection of TL1/
or zero (open/short circuit). TL2/TL3 sensor connector.
• Check resistance
characteristics of TL1/TL2/
TL3 sensor.
• Check for failure in outdoor
P.C. board (I/F).
Sensor resistance is infinity • Check connection of TO
or zero (open/short circuit). sensor connector.
• Check resistance
characteristics of TO
sensor.
• Check for failure in outdoor
P.C. board (I/F).
Sensor resistance is infinity • Check connection of TG1/
or zero (open/short circuit). TG2/TG3 sensor connectors.
• Check resistance
characteristics of TG1/TG2
/TG3 sensors.
• Check for failure in outdoor
P.C. board (I/F).
Sensor resistance is infinity • Check connection of TA
or zero (open/short circuit). sensor connector and
wiring.
• Check resistance
characteristics of TA
sensor.
• Check for failure in indoor
P.C. board.
Sensor resistance is infinity • Check connection of TF
or zero (open/short circuit). sensor connector and
wiring.
• Check resistance
characteristics of TF
sensor.
• Check for failure in indoor
P.C. board.
• Sensor resistance is infinity • Check connection of TS1/
or zero (open/short circuit). TS3 sensor connector
When TS3 detects an
• • Check resistance
unusual temperature during
characteristics of TS1/TS3
compressor operation and
sensor.
PMV4 operation in cooling • The attachment check of
mode TS3 sensor.
• Check for failure in indoor
P.C. board.
Sensor resistance is infinity • Failure in IPM built-in
or zero (open/short circuit). temperature sensor
→ Replace Compressor
P.C. board.
During compressor • Check installation of
operation in HEAT mode, TE1 and TL1 sensors.
TL1 continuously provides • Check resistance
temperature reading higher characteristics of TE1 and
than indicated by TL1 by at TL1 sensors.
least specified margin for 3 • Check for outdoor P.C.
minutes or more. board (I/F) trouble