Toshiba MMK-AP0072H Service Manual page 71

Check code name
[F07] / [18]
(Current code / AI-NET)
This error code means detection of Open/Short of TL sensor. Check disconnection of circuit for connection of connec-
tor (TL sensor: CN521, White) and characteristics of sensor resistance value.
(Refer to Outdoor unit temperature sensor characteristics.)
If sensor is normal, replace outdoor I/F P.C. board.
Check code name
[F08] / [1b]
(Current code / AI-NET)
This error code means detection of Open/Short of TO sensor. Check disconnection of circuit for connection of
connector (TO sensor: CN507, Yellow) and characteristics of sensor resistance value.
(Refer to Outdoor unit temperature sensor characteristics.)
If sensor is normal, replace outdoor I/F P.C. board.
Check code name
[F10] / [0C]
(Current code / AI-NET)
This error code means detection of Open/Short of TA sensor. Check disconnection of circuit for connection of connec-
tor (TA sensor: CN104, White) and characteristics of sensor resistance value. (Refer to Outdoor unit temperature
sensor characteristics.)
If sensor is normal, replace indoor P.C. board.
Check code name
[F12] / [A2]
(Current code / AI-NET)
This error code means detection of Open/Short of TS1 sensor. Check disconnection of circuit for connection of
connector (TS1 sensor: CN504, White) and characteristics of sensor resistance value. (Refer to Outdoor unit tem-
perature sensor characteristics.)
If sensor is normal, replace outdoor I/F P.C. board.
Check code name
TL sensor error
Check code name
TO sensor error
Check code name
Indoor TA sensor error
Check code name
TS1 sensor error
71
FILE NO. SVM-05052
Cause of operation
TL sensor Open/Short
Cause of operation
TO sensor Open/Short
Cause of operation
TA sensor Open/Short
Cause of operation
TS1 sensor Open/Short