Fujitsu AOT30PMAL inverter outdoor unit not working
When I switch it on the outdoor unit tries to start and I can hear the compressor trying to start but it rattels instead, After about 3 min the timer in the indoor unit flashes 13 times. Please help if you know what seems the problem is. Thank You
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Re: Fujitsu AOT30PMAL inverter outdoor unit not working
Sounds like your compressor is seized or a start fault. If the unit is under five years old it should be under warranty. Call Fujitsu warranty out to have a look at it for you. Contact details as follows http://www.fujitsugeneral.com.au/contact.php
Sorry but either way I think your going to need a part there is very little that I can do unless your in WA.
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Problem #1:Outdoor condensing fan motor has stopped running. This problem
could be caused by a bad motor run capacitor. If
your motor capacitor is not the problem, then more than likely you need a new
motor. Is the fan blade tight, stiff or hard to turn? If the fan blade is hard
to turn then you probably need a new motor.
Problem #2: Air conditioner compressor will not start. When power is applied
to the air conditioning outdoor unit the fan starts, but you hear a sound like
the compressor is trying to start, "UGGG"..., for about 5 to 10 seconds and then
all you hear is the outdoor condenser fan run. The compressor is locked and will
not start. What is happening is the compressor is trying to start, but because
the compressor motor is locked it tries to start for a few seconds and then
because of the high amperage being drawn goes off on internal overload. The
internal overload protects the compressor windings from overheating and burning
up. I see this many times during the start of the air conditioning season. Some
compressors just have a hard time starting after sitting all winter long. Some
compressors are locked up so bad that I can not start them and must tell my
customer that they need a new compressor . Many
times I can get the compressor started again without having to buy a new
compressor or new air conditioning system by using the device that is called, "Super-Boost." I keep two or three of these on the truck. They
have saved many of my customers from having to buy new air conditioning systems.
I have same problem like yours to my newlyinstalled Fujitsu multi-split system (the first time use since system installed1 week ago). I rang the electrician whodid the installation; he said it must be the units themselves nothing to dowith electricity. Okay, then I rang Fujitsu and their local service agent. Theysuggested me to switch off C/B for an hour to reset the units. I followed theinstruction but the indoor units still did not respond to remote control...
It simply looks like no power supply to indoor units (they are hard-wired tothe outdoor unit). So I used a multi-meter to test the power terminals of indoorunits (Danger! If you have no idea about this, don't even try! ): it seemed nopower supply even C/B is on. I turned to the isolator which next to the outdoorunit. The isolator was making arcing noise when I switched it on and off. Theindoor units suddenly turned on for few minutes then died again. So I figuredout the problem is that crooked isolator. I called the unhappy electricianto replace the isolator. End story....
I hope my experience will give a littlehelp to you...
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.
I have run into this with the LG brand systems. try shutting power off to the outdoor unit to reset all units. If problem persists, it could have to do with a charge level of refrigerant (freon) or possibly a failed control board.
On the outdoor unit the fan should not be running, on the indoor unit the fan should be running. If you then check the outdoor unit with fan not running, you should be able to hear clearly that the compressor is actually working. If this is all correct, it is possible that your fourway reverse valve is seeping and needs to be replaced.