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Troubleshooting
2.31 Damper Abnormality
H1
Error Code
Method of Error
Detected by the limit switch (LS) in the humidifier unit.
Detection
Error Decision
Conditions
Supposed
Causes
Troubleshooting
118
Limit switch does not turn on or off at the following timing
* The humidifier unit starts. (When the power supply turns on, humidifying operation starts)
* The humidifier unit stops.
Frost
Foreign matter
Defective limit switch (including improper connection)
Defective damper motor
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Is the damper fixed
due to frost?
NO
Is the wire connection
of limit switch (LS)
loosen?
NO
YES
Heat the damper unit and
melt frost.
Error again?
YES
YES
SiBE04-624_B
NO
OK
(Check intake air and
humidifier unit for direct
sucking of moisture.)
Reconnect the wires.
Replace the limit switch
(damper unit) or replace the
outdoor unit PCB.
(R13924)
Service Diagnosis
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