Toshiba RAV-GM901KRTP Series Service Manual page 50

Error mode detected by outdoor unit
Operation of diagnostic function
Check code
Indoor unit Cause of operation
High Wall
Disconnection, short of discharge
F04
temp. sensor (TD)
Disconnection, short of outdoor temp.
F06
sensor (TE)
Disconnection, short of outdoor temp.
F07
sensor (TL)
Disconnection, short of outside temp.
F08
sensor (TO)
Disconnection, short of suction temp.
F12
sensor (TS)
Disconnection, short of heat sink temp.
F13
sensor (TH)
Miss-mounting of outdoor temp. sensor
F15
(TE, TS)
F31 Outdoor P.C. EEPROM error
Compressor break down
H01 ∗ Although operation has started,
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
L10 Unset jumper of service P.C. board
Communication error between outdoor
L29
P.C. board MCU
Status of
Condition
air conditioner
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Continue
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
Stop Displayed when
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
- 50 -
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 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.
1. Check temp. sensor (TE, TS).
2. Check outdoor P.C. board.
1. Check outdoor P.C. board.
1. Check power supply voltage. (AC208V/230V ±10V)
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.
1. Outdoor service P.C. board
Check model type setting jumper wire.
1. Check outdoor P.C. board.