Toshiba RAV-SM564ATJP-E Service Manual page 56

Check code
Indoor unit
H03 Current detection circuit error
Case thermostat operation
H04
*Abnormal overheat of compressor
Discharge temp. error
P03 ∗ Discharge temp. (TD) over
specified value was detected.
P04 High pressure SW system error
P05 Power supply voltage error
High pressure protective operation
During cooling operation, outdoor
temp. sensor (TL) detected
P20
temperature over specified temp.
During heating operation, indoor
temp. sensor (TC, TCJ) detected
temperature over specified temp.
P22 Outdoor fan system error
Short-circuit error of compressor
P26
driving element
Position detection circuit error
P29
SVM-13072.indb 56 SVM-13072.indb 56
Operation of diagnostic function
Status of
Cause of errors
air conditioner
Stop
Stop
Stop
Stop
Stop
Stop
Stop
Stop
Stop
Condition
Displayed when 1. Check outdoor P.C. board.
error is detected (AC current detection circuit)
1. Check case thermostat and its connector
2. Check gas leak, recharge
Displayed when
3. Check full open of service valve
error is detected
4. Check PMV (Pulse Motor Valve)
5. Check broken pipe
1. Check refrigerating cycle (Gas leak)
Displayed when
2. Check PMV (Pulse Motor Valve)
error is detected
3. Check discharge temp. sensor (TD).
1. Check service valves are fully opened.
(Gas side, Liquid side)
2. Check outdoor fan operation.
3. Check motor error of outdoor fan.
4. Check clogging of outdoor PMV.
Displayed when
5. Check clogging of heat exchanger in indoor/outdoor units.
error is detected
6. Short-circuit of suction/discharge air in outdoor unit.
7. Check outdoor P.C. board error.
8. Check fan system error (Cause of air volume drop) at
indoor side.
9. Check PMV opening status in indoor unit.
Displayed when 1. Check power supply voltage. 50 Hz : AC 198 to 264 V,
error is detected
60 Hz : AC 198 to 242 V
1. Check outdoor heat exchanger sensor (TL).
2. Check indoor heat exchanger sensor (TC, TCJ).
3. Check full open of service valve.
Displayed when 4. Check indoor/outdoor fan.
error is detected
5. Check PMV (Pulse Motor Valve).
6. Check clogging and short circuit of indoor/outdoor heat
exchanger.
7. Overcharge of refrigerant. Recharge
1. Check lock of fan motor.
2. Check power supply voltage.
Displayed when
error is detected 50 Hz : AC 198 to 264 V, 60 Hz : AC 198 to 242 V
3. Check outdoor P.C. board.
1. When performing operation while taking-off compressor wire.
If P26 error occurs, check control P.C. board.
Displayed when
2. When performing operation while taking-off compressor wire.
error is detected
If an error does not occurs, compressor is layer short.
Displayed when 1. Check control P.C. board.
error is detected
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FILE NO. SVM-13072
Judgment and measures
11/01/13 1:53 PM 11/01/13 1:53 PM