Alarm
Code
Abnormality of Fan Controller Sensor
*1): Perform electrical discharge when checking or replacing fan controller by referring to the item 13.
4
.
★
Conditions of Activation:
This alarm is indicated when the following condition occurs.
After fan motor operation is started, fan controller current does NOT exceed 1.5A.
Before fan motor operation is started, fan controller peak current does NOT exceed 4A.
Alarm
Code
Compressor Protection Alarm
This alarm code appears when one of the following alarms occurs three times within 6 hours, which
may result in serious compressor damages, if the outdoor unit is continuously operated without
removing the cause.
Alarm Code:
Content of Abnormality
02
Activation of Protection Device (High Pressure Cut)
07
Decrease in Discharge Gas Superheat
08
Increase in Discharge Gas Temperature
43
Activation of Low Compression Ratio Protection Device
44
Activation of Low Pressure Increase Protection Device
45
Activation of High Pressure Increase Protection Device
47
Activation of Low Pressure Decrease Protection Device
(Vacuum Operation Protection)
These alarms are able to be checked by the CHECK Mode 1. Follow the action indicated in each
alarm chart.
These alarms are cleared only by turning OFF the main power switch to the system.
However,
careful attention is required before starting, since there is a possibility which will result in
serious damages to the compressors.
Check the fan motor.
Restart operation.
Abnormal
Faulty fan controller
and replace
fan controller. *1)
Faulty fan controller
and replace
fan controller. *1)
Fan motor stops
immediately.
Fan motor is not operated.
How is fan motor
operation when
restarted?
Is the fan motor coil
normal?
Normal
241
