CDN 400

Member
My 4650 quit cooling and with gauges on it the suction is 150 and high side is 115. The suction side frosts the line off the pump. Where do I start?
 
Not sure the lo side can be higher than the high side.
If line is frosting the compressor is pumping. Filter
clogged?? Dirty evaporator??? Are fans running? Full
flow of air?
 
There is a screen in the inlet side of the compressor that can clog over,,,you need to loose your charge to check it..I have had a couple plugged and cause this sort of result..
 
Well I had a bit of a brain fart ,I left the two taps open on my gauges so it was just reading both at the same time on both gauges after that added a small amount of 134 AND shut the heater control off seems to be working. I guess I had two dumd dumb moments today. Thank you for the replies, if I have any problems I will be back again.
 
When I was working for the deere dealer while in college I drove 50 miles to work on an 8650 A/C just to find out the heater was on too!
 

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