Toshiba SUPER MMK-AP0073H (IN) Service Manual page 88

Check code
[F03] / [93]
(Current code / AI-NET)
Is TC1 sensor connector (CN100: Brown)
on indoor P.C. board normally connected?
YES
Are characteristics of TC1 sensor
resistance value normal?
YES
Check indoor main P.C. board.
Defect → Replace
Check code
[F04] / [19]
(Current code / AI-NET)
This error code means detection of Open/Short of TD1 sensor.
Check disconnection of circuit for connection of connector (TD1 sensor: CN502, 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
[F05] / [A1]
(Current code / AI-NET)
This error code means detection of Open/Short of TD2 sensor.
Check disconnection of circuit for connection of connector (TD2 sensor: CN503, Pink) 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
[F06] / [18]
(Current code / AI-NET)
This error code means detection of Open/Short of TE1 sensor.
Check disconnection of circuit for connection of connector (TE1 sensor: CN505, Green) 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
Indoor TC1 sensor error
NO
NO
∗ Indoor unit temperature sensor characteristics
See Characteristics-2.
Check code name
TD1 sensor error
Check code name
TD2 sensor error
Check code name
TE1 sensor error
88
Cause of operation
TC1 sensor Open/Short
Correct connection of connector.
Replace TC1 sensor.
Cause of operation
TD1 sensor Open/Short
Cause of operation
TD2 sensor Open/Short
Cause of operation
TE1 sensor Open/Short