Troubleshooting Sheet

ManualsBrandsCooper&Hunter ManualsOtherCH09ACE230V

16

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(4) Malfunction diagnosis of startup failure

Main detection points:

Is wiring of compressor correct.

Is the stop time of compressor enough?

Is compressor damaged?

Malfunction diagnosis process:

Energize the

unit and start it

Is the stop time

of compressor more

than 3min

Start it 3 min later

Startup failure?

Is compressor wire connected correctly?

Connect it according

to wiring diagram

Replace parts of outdoor

electric box

Remove the error?

Replace

compressor

finish

(5) Diagnosis of losing synchronism for compressor

Main detection points:

Is pressure of the system too high?

Is voltage too low?

Malfunction diagnosis process:

Adjust

connecting wire

Losing synchronism

upon startup of

the unit

Is the stop time

of compressor more

than 3min

Is wire of compressor

well connected?

Replace parts

of outdoor

electric box

Remove error?

Replace

compressor

Finish

Losing synchronism

during running

Is outdoor fan normal?

Is outdoor fan

blocked by

stuff?

Replace parts

of outdoor

electric box

Remove error?

Replace

compressor

Finish

Is fan well

connected?

Remove

stuff

Reliable

connected?

Replace parts

of outdoor

electric box

Remove error?

Replace

outdoor fan

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