It is usually attached to the refrigerant low pressure line.
Window air conditioner service valve.
Start by diagnosing the problem to make sure low refrigerant is the issue.
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This one demonstrates replacement of the service valve with a brazed fitting on the air conditioner.
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Once confirmed then make sure the inside of the air conditioner is clean before you begin.
You ll need a refrigerant gauge set with 3 valves and a canister of r 22 or r410a refrigerant to proceed.
Hvac know it all 22 207 views.
Refrigerant service valve positions duration.
This eliminates the leak problems that these valves seem.
Window air conditioners do not usually have a service port which is easily fixed with a low cost bullet valve.
However they are fixable often only needing a low cost part or a refrigerant recharge to get them working again.
Window air conditioners are usually not fixed when broken and most often tossed and replaced.
One problem when repairing a window a c unit is they do not come with a service port schrader valve and need one to be installed.