Table of Contents
[ IX Troubleshooting ]
5401
1. Error Code
5401
Temperature sensor fault
2. Error definition and error detection method
A short-circuit or an open-circuit of the humidity sensor is detected during operation.
3. Cause, check method and remedy
(1)
Connector contact failure (CN30) (Loose con-
nector)
(2)
Broken or partially broken humidity sensor wire
(3)
Humidity sensor fault
(4)
Indoor unit control board (detection circuit) fault
HWE1113B
Cause
Check method and remedy
1)
Check the connector for proper contact.
Reconnect the connector, and operate the unit to check for
proper operation.
2)
Check for broken humidity sensor wire.
3)
Check the output voltage across No. 1 and No. 3 pins of
connector CN30 with the connector being connected to the
indoor unit control board.
30% : 1.25V
40% : 1.52V
50% : 1.88V
60% : 2.19V
70% : 2.48V
80% : 2.79V
4)
If the above items check out okay, replace the indoor unit
control board.
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Table of Contents
Troubleshooting
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