Table of Contents
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1.
Error Code
5202
Low-pressure sensor fault
2. E
rror definition
and error detection method
When a pressure sensor reading of 4.06 MPa [589 psi] or above is detected, error code "5202" will appear.
The unit will continue its operation by using other sensors as a backup.
3. Cause, check method and remedy
(
) 1
Low
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(2)
Pressure drop due to refrigerant leak
(3)
Torn wire coating
(4)
A pin on the male connector is missing or contact failure
(5)
Disconnected wire
(6)
Low pressure sensor input circuit failure on the control board
1.
Error Code
5301
ACCT sensor short circuit/open circuit
2. Error definition and error detection method
Abnormal value is detected by the ACCT sensor detection circuit immediately before inverter startup.
3. Cause, check method and remedy
(
) 1
INV board failure
(2)
Compressor failure
1.
Error Code
5301
ACCT sensor fault (Detail code 115)
2. Error definition and error detection method
When the formula "output current < 1.5 Arms" remains satisfied for 10 seconds while the inverter is in operation.
3. Cause, check method and remedy
(
) 1
Inverter open output phase
(2)
Compressor failure
(3)
INV board failure
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to the page on the troubleshoot-
ing of the high pressure sensor.
(9 [3] -1-(page 60))
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Replace the INV board if compressor failure
(see below) is ruled out.
Check the compressor for earth fault and short
circuit.
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Check the output wiring connections.
Check the compressor for earth fault and short
circuit.
If no problems are found with the above items,
replace the INV board.
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Table of Contents
Troubleshooting
