Fujitsu AW?Z24LBC, Инструкция по эксплуатации

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Self - diagnosis function and Checking points
Error Indication
Operation
(RED)
Timer
(GREEN)
Error
(Protection)
Diagnosis Method
0.5 sec 2 times
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 stop. (It releases by sending the operation stop signal from the remote controller). The discharge temperature error is activated. > Permanent stop.
0.5 sec 6 times
07-06
Excessive high pressure protection on cooling Discharge temperature error Indoor fan speed error Indoor fan lock error
The indoor fan speed is 0 rpm after 56 seconds from starting operation or from the time the fan mode was changed. > Operation stop. (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.
[Diagnosis Point]
Fan motor connector loose /defective contact. Fan motor defective Controller PCB defective.
[Diagnosis Point]
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").
Excessive voltage of DC voltage on PFC circuit in inverter PCB is detected, or the excessive current in the circuit is detected
.
> Permanent stop. Active Filter error or instantaneous cut off error is detected. > Compressor, Outdoor Fan : OFF. [Diagnosis Point]
Controller PCB defective (Refer to after mentioned "PFC circuit diagnosis")
PFC circuit error
0.5 sec 3 times 0.5 sec 2 times 0.5 sec 3 times 0.5 sec 2 times
Active Filter error
0.5 sec 3 times
0.5 sec 7 times
[Diagnosis Point] <CAUTION> Even if the unit is normal, it may detect error depending on the power supply voltage condition.
Controller PCB defective (Refer to after mentioned "Active Filter diagnosis") Check the wiring connection (Connector is loose/open, Choke coil)
0.5 sec 8 times
0.5 sec 5 times
Pressure Switch Error
If the pressure switch is open for 10 sec. when the power is turned on > Compressor, Outdoor Fan : OFF When it becomes normal after 10 sec. passed, the openretion is resumed based on serial forward transfor signal. [Diagnosis Point]
Check interruption (Air intake / outlet) Check outdoor fan operation (does not rotate) Check refrigerant cycle (Refer to "Refrigerant cycle diagnosis" which is described in the later chapter)