Fujitsu AS*9LSACW Service Instructions Manual page 55

0.5 sec 0.1 sec. Indoor Fan
6 times blinking Motor Error
0.5 sec 0.1 sec. Refrigerant
7 times blinking Cycle Error
0.5 sec 0.1 sec. Other Error
8 times blinking
0.1 0.5 sec Indoor Fan Lock Error
sec. 2 times
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0.1 0.5 sec Indoor Fan Speed Error
sec. 3 times
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0.1 0.5 sec Discharge Temperature
sec. 2 times Error
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0.1 0.5 sec Excessive High Pressure
sec. 3 times Protection on Cooling
blinki
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0.1 0.5 sec Active Filter
sec. 2 times (Permanent Stop)
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0.1 0.5 sec Active Filter Error
sec. 3 times
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The indoor fan speed is 0 rpm after 56 seconds from starting operation or from the time the fan mode was
changed. > Operation stops. (It releases by sending the operation stop signal from the remote controller.)
[Diagnosis Point]
- Fan motor connector loose/ defective contact.
- Fan motor defective.
- Controller PCB defective.
The indoor fan speed is 1/3 of the target frequency after 56 seconds from starting operation or from the time the
fan mode was changed. > Operation stops. (It releases by sending the operation stop signal from the remote
controller.)
[Diagnosis Point]
- Fan motor connector loose/ defective contact.
- Fan motor defective.
- Controller PCB defective.
The discharge temperature error is activated.
[Diagnosis Poijnt]
- Check if 2 way valve or 3 way valve is left open.
- Heat radiation is blocked (Inlet/Outlet)
- Check if Outdoor Fan is defective (does not rotate).
- Refrigeration cycle defective (Refer to after mentioned "Refrigerant cycle diagnosis").
Excessive high pressure protection on cooling mode has been activated.
> Compressor, Outdoor Fan : OFF (It releases after 3 minute ST)
[Diagnosis Point]
- Heat radiation is blocked (Inlet/Outlet)
- Check if Outdoor Fan is defective (does not rotate).
- Refrigeration cycle defective (Refer to after mentioned "Refrigerant cycle diagnosis").
Error
Output voltage error of Active filter is detected.
[Diagnosis Point]
- Check the wiring connection (Connector is loose/open, Choke coil)
- Controller PCB defective (Refer to after mentioned "Active Filter diagnosis")
Active filter error or instantaneous cut off error is detected.
> Compressor, Outdoor Fan : OFF
[Diagnosis Point]
- Check the wiring connection (Connector is loose/open, Choke coil)
- Controller PCB defective (Refer to after mentioned "Active Filter diagnosis")
<CAUTION> Even if the unit is normal, it may detect error depending on the power supply voltage condition.
> Permanent stop.
> Permanent stop.