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Hi guys
i got LG mini split heat pump
it has bad check valve
so i removed it
but here we dont have spare parts
s what i can do then
here is the ac unit diagram for cooling only no heating
http://www.mediafire.com/convkey/038...4oaqxcp9zg.jpg
here is both heating and cooling
so u can see check valve in heating only also an addition capillary
http://www.mediafire.com/convkey/58a...6sjkc00wzg.jpg
without parts I cant see a way round it mate
maybe if you have an old solenoid valve and a relay
the bypass solenoid can be wired to the normally closed side of relay so when the liquid line solenoid drops out this kicks in
only other thing can think of is a shut off / isolation valve but that means you manually switching from cooling/heating mode
will message you on facebook if I can find one in my garage and see if I can post it to you