Fujitsu ASU12RL2 Trouble shooting 14 OUTDOOR UNIT Error Method, Trip detection, Detective details

Models: ASU12RL2 AOU09RL2 AOU12RL2

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Trouble shooting 14 OUTDOOR UNIT Error Method:

Trouble shooting 14 OUTDOOR UNIT Error Method:

Trip detection

Indicate or Display:

Refer to error code table.

Detective Actuators:

Outdoor unit Main PCB Compressor

Detective details:

Trip detectionWhen more than normal operating current to IPM in Main PCB flows, the compressor stops.

Manual background After the compressor restarts, if the same operation is repeated within 40sec, the compressor stops again.

Manual background If Manual background and Manual backgroundrepeats 5 times, the compressor stops permanently.

Forecast of Cause :

1.

Defective connection of electric components 2. Outdoor heat exchanger clogged 3. Compressor failure

4.

Main PCB failure

Check Point 1 : Check connections of Outdoor unit electrical components

Manual background Check if the terminal connection is loose.

Manual background Check if connector is removed.

Manual background Check erroneous connection.

Manual background Check if cable is open.

>>Upon correcting the removed connector or mis-wiring, reset the power.

Manual background OK

Check Point 2 : Check Heat exchanger

Manual background Is there anything obstructing the air distribution circuit?

Manual background Is there any clogging of Outdoor Heat Exchanger?

Manual background OK

Check Point 3 : Check Compressor

Manual background Check Compressor. (PARTS INFORMATION 2)

OK

Check Point 4 : Replace Main PCB

If Check Point 1 ~ 3 do not improve the symptom, change Main PCB.

02-16

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Image 39
Fujitsu ASU12RL2 Trouble shooting 14 OUTDOOR UNIT Error Method, Trip detection, Detective Actuators, Detective details