| Questions |
Cause |
Remedy |
| Is the condenser clean? |
Dirty condenser |
Clean condenser |
| Are the condenser fans running? |
Condenser fans not running |
Repair or replace |
| Is the water valve open? |
Water shut off |
Turn on water |
| |
Water-cooled condenser restricted |
Clean or replace condenser |
| Have you checked the refrigerant charge? |
Refrigerant overcharge |
Recover excess charge |
| Is there air or other non-condensables in the system? |
Non-condensables in the system |
Remove from the system |
| Where is the unit located? What is air temperature entering condenser? |
Poorly ventilated or hot location |
Properly ventilate unit or relocate |
| Is there any air recirculation from this or any other units? |
Air recirculation |
Properly ventilate unit or relocate |
| Is discharge valve partially closed? |
Discharge valve partially closed |
Open discharge valve |
| Is heat pressure control set and functioning properly? |
Head pressure setting too high. Headmaster malfunctioning |
Adjust setting or replace control |
