Toshiba RAV-GM562ATP-TR Service Manual page 52

Error mode detected by outdoor unit
Operation of diagnostic function
Check code
Cause of errors
Indoor unit
Disconnection, short of discharge
F04
temp. sensor (TD)
Disconnection, short of heat exchanger
F06
temp. sensor (TE)
Disconnection, short of heat exchanger
F07
temp. sensor (TL)
Disconnection, short of suction temp.
F12
sensor (TS)
Miss-mounting of outdoor temp.
F15
sensor (TE, TS)
Disconnection, short of outside air
F08
temp. sensor (TO)
Disconnection, short of heat sink
F13
temp. sensor (TH)
F31 Outdoor EEPROM error
L10 Unset model type of service P.C. board
Heat sink overheat error
P07
∗ Heat sink temp. sensor detected
over specified temperature.
Detection of gas leak
∗ Discharge temp. sensor (TD),
P15
Suction temp. sensor (TS) detected
temperature over specified temp.
4-way valve inverse error
∗ After heating operation has started,
indoor heat exchanger temp. drops
P19 under the specified temp.
∗ After heating operation has started,
outdoor heat exchanger / suction
temp. rises over the specified temp.
Compressor break down
∗ Although operation has started,
H01
operation frequency decreases and
operation stops.
Compressor lock
H02
* Over-current detection after
compressor start-up
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
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
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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Judgment and measures
1. Check discharge temp. sensor (TD).
2. Check outdoor P.C. board
1. Check heat exchanger temp. sensor (TE).
2. Check outdoor P .C. board .
1. Check heat exchanger temp. sensor (TL).
2. Check outdoor P.C. board .
1. Check suction temp. sensor (TS).
2. Check outdoor P.C. board.
1. Check temp. sensor (TE, TS).
2. Check outdoor P.C. board.
1. Check outside air temp. sensor (TO).
2. Check outdoor P.C. board.
1. 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 screw tightening between P.C. board and heat
sink and check radiator grease.
2. Check heat sink blast path.
1. Check gas leak, recharge
2. Check full open of service valve.
3. Check PMV (Pulse Motor Valve).
4. Check broken pipe.
5. Check discharge temp. sensor (TD), suction temp.
sensor (TS).
1. Check operation of 4-way valve.
2. Check outdoor heat exchanger (TE), suction temp.
sensor (TS).
3. Check indoor heat exchanger sensor (TC).
4. Check 4-way valve coil.
5. Check PMV (Pulse Motor Valve).
1. Check power supply voltage. (50 Hz : AC 198 to 264 V,
60 Hz : AC 198 to 242 V)
2. Overload operation of refrigerating cycle
1. Compressor problem (Lock, etc.): Replace compressor.
2. Compressor wiring error (Open phase)