1.What are the possible causes of compressor heating?

2.What are possible causes of loss of lubrication?

3.What are the symptoms (sign) of broken compressor valves (using system vital sign
Discharge pressure, discharge, Temp.Section Pressor.Section Temp.Amp.
:o
Please ans these question I will be v thankful.

Quote:

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Originally Posted by adeel

1.What are the possible causes of compressor heating?

2.What are possible causes of loss of lubrication?

3.What are the symptoms (sign) of broken compressor valves (using system vital sign
Discharge pressure, discharge, Temp.Section Pressor.Section Temp.Amp.
:o
please ans these question i will be v thankful.

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Compressor heating= low charge,over charge,dirty coils, low voltage,bad capacitor,bad start kit, short cycling,defective expansion device, bad windings/megger test to confirm.. To name just a few

Loss of lube= To long a line set, improper line set install,wrong line set size, lack of trap depending upon evaporator location,overcharge causing washing of oil out of compressor. And more

Broken compressor valves. Liquid charge instead of vapor with out supervision,low suction pressure,low discharge pressure,low amp draw. Liquid flood back in suction line and more.

Do not hang your hat on any of this. These are just a few of the possibilities. Professional diag needs oil test by lab and actually being there to see and hear the situation.