Question about Fujitsu 18C1 Air Conditioner

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I have a fujitsu asta18lcc when you turn it on there is no operation. The louvers open and the timer and operation lights blink 5 times then there is a 6-7 second pause then the cycle repeats

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Below is an extract straight from the fujitsu service manual:

Compressor location error
The compressor speed does not synchronze with the control signal. (Including start up failure of the compressor).
> permanent stop.
[Diagnosis Point]
Check if 2-way valve or 3-way valve is left open.
Check the compressor (Winding resistance value, loose lead wire).
Refrigeration cycle defective (Refer to after mentioned "refrigerant cycle diagnosis")

Posted on Jul 15, 2010

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Posted on Jan 02, 2017

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I don't know if this is the proper technical solution or not but my unit was having the same issue. I cleaned it checked fuses made sure the cover was properly in place and nothing worked. As a final thought I went to the home fuse panel and tripped the breaker for the unit, waited about 30 seconds and turned it back on. I did this with the unit set to off. When I came back and turned it on, it is working properly with the operation light solid red.

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