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Originally Posted by mabowens
My A/C stopped working. The compressor stays on at idle but kicks out when accelerating. The high pressure line freezes up coming out of the condenser all the way to the evaporator. High side pressure holds at 225 and low pressure side holds at 30. Any ideas of what the problem is? Thanks
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the pressures at idle look too low....at about 1200rpm the low side pressures may drop so low that the compressor is commanded to turn off...
if this is the case add more refrigerent to the system...45psi low and 325psi high at 1200-1800rpm...@air temp of 80-85 degrees with the fan to max windows open...
If you had air in the system the low side would be low and the high side would be very high , much higher than your readings...