Table of Contents
[7-7 Error Code Definitions and Solutions: Codes [5000 - 5999] ]
7-7-5
Error Code [5120]
1. Error code definition
DCL temperature sensor circuit fault (Detail code 01)(outdoor unit)
2. Error definition and error detection method
When an open phase or a short circuit of the temperature sensor is detected immediately before inverter startup or during
operation (applicable to INV30YC only)
3. Cause, check method and remedy
INV30YC
(1)
Contact failure
(2)
DCL temperature sensor
(3)
INV board failure
For inverter-related error codes, refer to the following page(s). [8-10 Troubleshooting Inverter Problems](page 337)
7-7-6
Error Code [5201]
1. Error code definition
High-pressure sensor fault (63HS1)
2. Error definition and error detection method
If the high pressure sensor detects 0.098MPa [14psi] or less during the operation, the outdoor unit stops once, turns to anti-
restart mode for 3 minutes, and restarts after 3 minutes when the detected high pressure sensor is 0.098MPa [14psi] or more.
If the high pressure sensor detects 0.098MPa [14psi] or less just before the restart, the outdoor unit makes an error stop, and
the error code "5201" will appear.
During 3-minute antirestart mode, preliminary errors will be displayed on the LED display.
A error is not detected for 3 minutes after the compressor start, during defrost operation, or 3 minutes after defrost operation.
3. Cause, check method and remedy
(1)
High pressure sensor failure
(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)
High pressure sensor input circuit failure on the control board
HWE1314A
Cause
Cause
Check method and remedy
Check the connector (CNTH) on the inverter board for proper
connection.
Disconnect the connector (CNTH), check the resistance val-
ue of the DCL temperature sensor, and replace the DCL if
the difference is significant.[3-3 Functions of the Major Com-
ponents of Outdoor Unit](page 78)
If the problem persists after restart operation, replace the in-
verter board.
Refer to the following page(s). [8-5-1 Com-
paring the High-Pressure Sensor Measure-
ment and Gauge Pressure](page 313)
- 258 -
Check method and remedy
GB
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