Toshiba Carrier RAV-SP180AT2-UL Service Manual page 57

CODE APPLICATION CONTROL KIT
No. LED display
[H03] D01 D02
(Red) (Yellow) (Yellow) (Yellow)
[L29] D01 D02
(Red) (Yellow) (Yellow) (Yellow)
[P03] D01 D02
(Red) (Yellow) (Yellow) (Yellow)
[P04] D01 D02
(Red) (Yellow) (Yellow) (Yellow)
LED display legend: Go off,
(Part without special mention indicates a part of the outdoor unit.)
D03 D04 [Power supply error, Current detection circuit error]
Between outdoor P.C. board and terminal block
D03 D04 [Power supply error, Current detection circuit error]
or
Is compressor under correct conditions?
D03 D04 [Discharge temp. error]
Does an abnormal overload happen?
Is resistance value of TD sensor correct?
D03 D04 [Power supply error (Voltage error)]
Go on, Flash (5Hz)
Check / Countermeasures
Are connections of wires correct?
Between power cable and terminal block
YES
Is AC mains voltage correct?
208/230V ± 10V
YES
YES
Is there gas leak?
Is there refrigerant shortage?
NO
Is PMV under correct conditions?
YES
NO
Is connection of CN601 correct?
YES
Is AC mains voltage correct?
208/230V ± 10V
YES
– 57 –
NO
Correct wires
Check outdoor P.C. board.
Defect → Replace
NO
Correct
power supply line.
NO Compressor trouble
Rare short check
Defective → Replace
Check outdoor P.C. board.
Defect → Replace
YES
Repair defective position.
Recharge refrigerant.
NO
Repair defective position.
Replace defective part.
YES
Remove and improve
the cause of overload.
NO
Correct connector.
Sensor error → Replace
Check outdoor P.C. board.
Defect → Replace
NO
Confirm power supply
construction, etc.
Check outdoor P.C. board.
Defect → Replace