does a blockage in the condenser explain the low pressure going down almost to zero when the ac is turned on? Yes a blockage there will cause higher high side pressures, and lower low side pressures as little refrigerant is getting through to the low side. I have used aerosol flush, sprayed through...

It sounds like there is a blockage in the condenser. No parts of the high side should be colder than ambient. If there is liquid meeting a restriction, the parts after the restriction will get cold because the pressure drop works like an expansion valve. Thanks for the answer! Actually it is someth...

Hi there, My AC didn't operate for a few years. I finally decided to fix it BUT as cheaper as possible . Since I store it during winter and the manual says I should operate de AC at least once a month, even in the winter. I replaced o-rings, Clean condenser,expansion valve and evaporator. I replaced...