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SHORT CYCLING  MEANS CONTINUOUS STARTING AND STOPPING OF COMPRESSOR. THERE ARE FOLLOWING REASON FOR SHORT CYCLING :-

1. LOW PRESSURE CUT OUT FAULTY.
2. LOW PRESSURE CONTROL DIFFERENCE TOO SMALL.
3. WRONGLY ADJUSTED CAPACITY REGULATOR.
4. SUCTION FILTER CHOCK.
5. REFRIGERANT IS LOW.
6. LEAKY REFRIGERANT PLANT.
7. TOO MUCH COOLING WATER TO CONDENSOR.
8. TEV PARTIALLY CHOCKED.
9. TEV BULB WRONGLY PLACED.
10. SOLENOID VALVE LEAKING.
11. FROSTING OF EVAPORATOR COIL.
12. DEFECTIVE PISTON RING OR LINER.
13. DEFECTIVE LEAKY DISCHARGE VALVE.
14. TOO HIGH COMPRESSOR CAPACITY.