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View Full Version : Zero high side pressure?


Charles Gray
Nov 30, 2015, 10:10 PM
Hi guys. First post. I'm a noob HVAC tech with an AOS IN HVAC asking about an R-22 cold table I've been fighting with for a week. The compressor ohmed out wrong, and I replaced it only to find there is ZERO high side pressure. None. I shut off the compressor when it reaches 200 degrees so the oil doesn't cook internally. Thought it might be a cap tube restriction, but after measuring it out, brazing it in, I got nothing, still. I checked the compressor port where I have the head pressure gauge to see if that was clogged, but no. Open to any suggestions. Is there a commercial hvac place I should have posted?