I installed my Fujitsu inverter multi-split system 3 about 3 years ago. About 8 months ago it started exhibiting problems. None of the fan units were blowing any cold air. Got the repair guy to come in and they replaced some parts and everything was fine and dandy again until about 3 weeks ago, one of the fan units stopped blowing cold air. There was no error code. Called the repair guy, the diagnosis was fan unit pcb faulty. However, I do not agree with that assessment. I am an electrical and computer engineer by training so I took out the pcb from the working fan unit and tested it against the said faulty unit. No difference. So I swapped the working one into the “non-working” unit. The non-working unit stayed the same. The working unit also continues to work. This proves that their diagnosis is wrong! They still want me to pay for the service visit. FML!
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