Serial signal (reverse) error, at operation start up. Usually a faulty outdoor controller board but this one has about six PCB'S in the outdoor unit so your going to need a tech to look at it.
tyvm for wisdom imparted. an ongoing situ. Rec'vd other diagn. inbetween time as indoor therm. & replaced both room/pipe w/ no change to code/opertn. Book'd techn. who pulled fan connector from 1 of primary PCB's outdr. & changn code to show 2x op.3x timer(outd.error i.e Fan) & has quoted for fan AND indoor PCB. Question ultimately being : Do i really need New ind.PCB if initial error code was miscomm. related to outdr. motor fan fault? highly appreciated as have v.low income so its repair over replace.
I would say that if the indoor unit is otherwise functioning normally (correct fan speed can be selected, louvres can be controlled, beeps when remote pressed), then it's probably ok - probably. Having said that, unless I have misunderstood the first error code you have posted, it doesn't make sense to replace the indoor thermistors or board when the error code points to the outdoor PCB's (see attached error codes). The second error code you posted is for an indoor thermistor which is pretty easy and cheap to replace.The outdoor fan motor could be faulty causing the outdoor controller board to not power up (and thus the error) but this is easily checked with a multi meter that has a diode check function (I have info for this if you need). It's hard to diagnose without seeing it but from the info you have given, I am not convinced that swaping the outdoor fan and indoor controller is going to fix this.
Sorry, I thought that picture would come out bigger. If you send me your email address I will pass it on.
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SOURCE: we have a fujitsu air
Sounds like you have it in heating mode or it is low on charge. In cooling mode, the outside fan should blow hot air not cold.
SOURCE: air conditioner not geting cool
Hello, It sounds to me like your low on freon/refrigerant. You'll need to have someone test the pressures for you.
SOURCE: Fujitsu Air Conditioning split unit Model
Your compressor is seized up. shut down unit and let compressor cool down, it may start again but probably needs to be replaced.... sorry for the bad news,
SOURCE: my room AC , gives not 100% cooling air, ita gives
Check the outdoor side of your unit. Make sure that nothing is blocking the back and also take a hose and clean out the fines of the AC unit. If problem still persists after that, then check to make sure that the internal filter is not blocked or dirty.
SOURCE: Fujitsu inverter air cond. just stopped working pr...
It sounds like your inverter is at fault. You will need an inverter tester ( most good service techs will have one ) to prove that the output to the compressor is correct. If the inverter is okay then it will be the compressor at fault with a location error or it is simply seized. A common fault that caused this was the eev remained closed (coil failure ) and caused the compressor to over heat.
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