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doormaster2008
17-09-2009, 01:09 PM
can anyone shed any light on this problem.i have just replaced a compressor on a lg as-h2465dmo outdoor unit,added charge of r410 refrigerant,started up and it went straight onto a vac also no pressure on liquid outlet.checked found no voltage to reversing valve from indoor pc board.could this be a board fault.thanks
rude
17-09-2009, 01:57 PM
are your service valves open?
exotiic
17-09-2009, 02:17 PM
Your problem is with the first two letters of your title; lg.

Sorry I couldn't help myself!
acnerd
17-09-2009, 05:26 PM
can anyone shed any light on this problem.i have just replaced a compressor on a lg as-h2465dmo outdoor unit,added charge of r410 refrigerant,started up and it went straight onto a vac also no pressure on liquid outlet.checked found no voltage to reversing valve from indoor pc board.could this be a board fault.thanks

They're not the greatest units on earth as exotiic mentioned. Any chance there is a discharge connection before the refrigerant enters the condensor? If the reversing valve was jammed the HP would go sky high.
If you have a solenoid valve magnet, you could manually move the reversing valve over. I think it energizes for heating anyway. If it runs in heating (suction gets hot) but pumps down in cooling, I suspect there is a blockage on your capillary tube on the outdoor unit. It would explain why you have no liquid pressure.
doormaster2008
17-09-2009, 05:27 PM
Your problem is with the first two letters of your title; lg.

Sorry I couldn't help myself!
thanks exotiic very helpful
doormaster2008
17-09-2009, 05:28 PM
are your service valves open?
yes both valves are open
Brian_UK
17-09-2009, 05:37 PM
SIlly question perhaps but... you did do a liquid charge?
doormaster2008
17-09-2009, 06:05 PM
SIlly question perhaps but... you did do a liquid charge?
yes.i suspect what ever is causing this is what made compressor to fail.lg dont seem to go over the top with safety controls,as it ran on a 30inch vac
exotiic
18-09-2009, 11:03 AM
thanks exotiic very helpful

I was only making a lighthearted joke to lift spirits. I apologise
doormaster2008
18-09-2009, 02:59 PM
I was only making a lighthearted joke to lift spirits. I apologise
not a problem exotiic.your right though.