|
|
| If the breaker remains set, check to see if compressor is |
|
|
| running and condenser fan turns on. |
|
|
| After compressor runs a few minutes, check the refrigerant |
|
|
| “sight glass” in the ¼” copper tubing. Look for bubbles. |
|
|
| If no bubbles are present and compressor is running, |
|
|
| refrigerant system is running OK. |
|
|
| If bubbles are present, system is low on refrigerant. |
|
|
| A CERTIFIED HVAC service technician will have to locate and |
|
|
| repair any refrigerant leaks, then add refrigerant. |
|
|
| Condenser fan should come on either immediately on |
|
|
| compressor start or after sight glass gets warm. |
|
|
| If not, compressor will trip off on high pressure safety |
|
|
| control, reducing capacity and possibly tripping the |
|
|
| breaker. |
|
|
| In this event, CERTIFIED HVAC service technician will have |
|
|
| to check for the problem. |
|
|
| |
Compressor runs intermittently |
| ||
|
|
| |
| 1. | Evaporator Unit | Evaporator coil will probably be iced. |
| blower not running with | Call a CERTIFIED HVAC service technician. | |
| compressor |
| |
|
|
|
|
| 2. | Evaporator Unit | • Increase speed control setting if equipped. |
| blower running too slow | • Clean coil if necessary, remove obstructions. | |
| or air flow blocked. | • Coil icing can occur. | |
|
|
| |
| 3. Condenser coil | Clean coil and fan thoroughly, clear any obstructions and/ | |
| blocked with dirt or | or cause for hot air recirculation. | |
| other matter. |
| |
|
|
| |
| 4. Condenser fan | Call a CERTIFIED HVAC service technician to diagnose and | |
| motor bearings faulty | repair. | |
| causing motor to trip on |
| |
| overload, followed by |
| |
| compressor cycling off. |
| |
|
|
| |
| 5. Hot air, above 125°, | Provide source of cool air to condenser space in accordance | |
| entering condenser from | with directions in this manual. | |
| confined space (outer |
| |
| room) |
| |
|
|
|
|
| 6. | System refrigerant | Call a CERTIFIED HVAC service technician to diagnose and |
| overcharge. | recover excess refrigerant. | |
|
|
|
|
Page 18 |
