Toshiba RAV-GM2241AT8-TR Service Manual page 65

Check Outdoor
code LED display
[F15]
[F23]
[F31]
(Item without special mention Indicates part of outdoor unit.)
[Miss-wiring of heat exchanger sensor (TE, TS)]
Is mounting status of
TE and TS sensors correct?
Is connection of CN600 correct?
Is resistance value of TS sensor correct?
Is connection of CN601 correct?
Is resistance value of TE sensor correct?
Replace Interface
P.C. board.
[Low pressure sensor (PS) trouble]
Is the PS sensor connector
correct connected?
YES
Is the PS sensor output voltage
characteristic normal?
YES
Is the low pressure
during compressor
operation 1.45 MPa
or less?
YES
Replace Interface
P.C. board.
[EEPROM trouble]
Replace Interface
P.C. board.
Check and troubleshooting
NO
YES
NO
YES
NO
YES
NO
NO
Is not the refrigerant
NO
bypassing from
discharge to suction
by the 4-way valve?
YES
Replace 4-way valve
– 65 –
Correct sensor mounting.
Correct connector.
Replace TS sensor
Correct connector.
Replace TE sensor
Connector connection
correction
(PS sensor: CN 606)
Replace PS sensor
NO
Check
compressor