Fujitsu WATERSTAGE WS A050DD6 Series Maintenance Document page 21

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Split system single phase type
Clear 18: Fan motor error (permanent stoppage)
Hydraulic Unit LED: Green 9 flashes / Red 7 flashes
Outdoor Unit LED: flash
Probable causes:
Fan motor failure.
Motor protection.
Main PCB failure.
Check:
1. Check fan rotation:
- Switch off the heat pump and rotate the fan manually.
- If the fan or bearings are faulty, replace them.
2. Check the ambient temperature around the motor:
- Check excessively high temperature around the fan.
Wait until the temperature comes down again and switch the
fan back on.
3. Check the main board output voltage:
- On the outdoor unit, check the output voltage (DC) of the following connectors:
1 (red)/ 3 (black)
4 (white)/3 (black)
If the voltage is incorrect, replace Main PCB.
Maintenance Document 1589-3
Terminals
240~400V (for 060LDC and 080LDC)
FAN MOTOR
OK
OK
Voltage
300~400V (for 100LDT)
15 ±1.5V
21

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This manual is also suitable for:

Waterstage ws a100dd6 seriesWaterstage wg a050dd6 seriesWaterstage wg a100dd6 seriesWaterstage wo a060ldc seriesWaterstage wo a080ldc seriesWaterstage wo a100ldt series

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