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AC Pressure readings and recharge 850 1994

posted by  Rule 308 on  Sun May 23 07:37 CST 2004
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last visit: Tue May 8 09:20 CST 2012
[RELATED]

You need to add refrigerant. Put in a pound or less and check it. Your low side pressure should be in the area of 30-35 pounds and fairly steady. The compressor keeps cutting in and out because it is low on refrigerant. When the compressor pulls the low side down to less than 30 or so it cuts out and when the pressure creeps back up to 45 or so it will rengage. If you have enough refrigerant in it that it cannot pull it down to less than 30 pounds then it will stay engaged like it should. If I am not evacuating the system I will usually meter in around 8 ozs. to 1lb. as I watch the pressures. If at one pound the pressures are stable and it blows cold I install some tracer dye in the system and ship it.






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