| Questions |
Cause |
Remedy |
| What is the thermostat differential setting? |
Control differential set too closely |
Widen differential |
| Have you checked condenser? |
Cycling on high pressure |
Clean dirty condenser. Check water supply on water-cooled condenser |
| Have you checked Discharge valve? |
Discharge valve leakin |
Correct condition |
| Have you checked the sight glass? |
Shortage of refrigerant |
Reclaim overcharge |
| |
Refrigerant overcharge |
Reclaim overcharge |
| Have you checked the expansion valve? |
Leaky expansion valve. |
Replace |
| Is compressor hot? |
Compressor-motor overload cutting out |
Check for high head pressure, tight bearings, stuck pistons, clogged air or water-cooled condenser or water shut-off |
