Toshiba RAV-GM1101AT8P-E Service Manual page 49

Error mode detected by outdoor unit
Operation of diagnostic function
Check
Cause of operation
code
Disconnection, short of discharge
F04
temp. sensor (TD)
Disconnection, short of heat
F06
exchanger temp. sensor (TE)
Disconnection, short of heat
F07
exchanger temp. sensor (TL)
Disconnection, short of outside air
F08
temp. sensor (TO)
Disconnection, short of suction
F12
temp. sensor (TS)
Disconnection, short of heat sink
F13
temp. sensor (TH)
Miss-mounting of outdoor temp.
F15
sensor (TE, TS)
F31 Outdoor P.C. EEPROM error
L10 Unset jumper of service P.C.board
Communication error between
L29
MCUs of outdoor unit,
Compressor break down
* Although operation has started,
H01
operation frequency decreases
and operation stops.
Compressor lock
H02 * Over-current detection after
compressor start-up
H03 Current detection circuit error
Case thermostat operation
H04 * Abnormal overheat of
compressor
Status of air
Condition
conditioner
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
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FILE NO.SVM-18044-1
Judgment and measures
1. Check discharge temp. sensor (TD).
2. Check outdoor P.C.board.
1. Check temp. sensor (TE).
2. Check outdoor P.C.board.
1. Check temp. sensor (TL).
2. Check outdoor P.C.board.
1. Check outside air temp. sensor (TO).
2. Check outdoor P.C.board.
1. Check suction temp. sensor (TS).
2. Check outdoor P.C.board.
1. Check outdoor P.C.board.
(MCC-1627 (Q200) is incorporated in TH sensor)
1. Check temp. sensor (TE, TS).
2. Check outdoor P.C.board.
1. Check outdoor P.C.board.
1. Outdoor service P.C.board.
Check model type setting jumper wire.
1. Check outdoor P.C.board.
2. Check connection between outdoor P.C.boards.
1. Check power supply voltage. (AC342 to 457V)
2. Overload operation of refrigerating cycle.
1. Trouble of compressor (Lock, etc.) : Replace
compressor.
2. Wiring error of compressor (Open phase).
1. Check outdoor P.C.board.
(AC current detection circuit)
1. Check case thermostat and connector.
2. Check gas leak, recharge.
3. Check full open of service valve.
4. Check PMV (Pulse Motor Valve).
5. Check broken pipe.