Posted by Roger Tomfohrde on July 16, 2016 at 19:08:44 from (24.118.172.93):
In Reply to: Re: CIH 8820 A/C posted by jeremy in ne on July 16, 2016 at 17:54:32:
A couple things to check. 1st make sure the blend door by the heater is open so the air gets to the coil- had a JD chopper that that happened, the door was closed even though the control said it was open. The cable had slipped. Second is there any quick connections that could have a restriction? I had a tractor the rust from the steel piping fell down and plugged the quick connect. We gutted it and tagged it that it was missing. There might be a frost spot where the restriction is. Look at as much of the piping as you can. When you charged it did you put the refrigerant in through the high side and watch what the low side was doing if the pressure came up slowly or quickly. It will tell you sometimes if there is a restriction. Another thought. Is there a solenoid in the refrigerant line that could not be opening?What is the high side doing if you have a gauge on that side?(can't see the original post as I type) If the pressure goes up initially to more than at least 150 and drops back there has to be a restriction.Could there be a collapsed hose on the suction side before the pump?
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