TROUBLE SHOOTING GUIDE
Problem |
| Probable cause |
| Remedy |
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| |||
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| |
A. The air conditioner does not run. | 1. Power failure. | 1. | Wait for power resume. | |
| 2. | Fuse blown or circuit breaker | 2. | Replace the fuse or reset the |
|
| open. |
| breaker. |
| 3. | Voltage is too low. | 3. | Find the cause and fix it. |
| 4. | Faulty contactor or relay. | 4. | Replace the faulty component. |
| 5. | Electrical connections loose. | 5. | Retighten the connection. |
| 6. | Thermostat adjustment too low | 6. | Check thermostat setting. |
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| (in heating mode) or too high |
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| (in cooling mode). |
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| 7. | Faulty capacitor. | 7. | Find the cause then replace |
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| capacitor. |
| 8. | Incorrect wiring, terminal loose. | 8. | Check and retighten. |
| 9. | Pressure switch tripped. | 9. | Find the cause before reset. |
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| |
B. The outdoor fan runs but the | 1. Motor winding cut or grounded. | 1. | Check the wiring and the | |
compressor will not start. |
|
|
| compressor winding resistance. |
| 2. | Faulty capacitor. | 2. | Find the cause then replace |
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| capacitor. |
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| |
C. There is insufficient heating or | 1. There is a gas leak. | 1. | Remove charge, repair, evacuate | |
cooling. |
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| and recharge. |
| 2. | Liquid and gas line insulated | 2. | Insulate them separately. |
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| together. |
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|
| 3. | The room was probably very hot | 3. | Wait while unit has enough time to |
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| (cool) when you started the |
| cool the room. |
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| system. |
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| |
D. The compressor runs continuously. | 1. Thermostat adjustment too low | 1. | Check thermostat setting. | |
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| (in heating mode) or too high |
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|
| (in cooling mode). |
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| 2. Faulty fan. | 2. | Check condenser air circulation. | |
| 3. | Refrigerant charge too low, leak. | 3. | Find leak, repair and recharge. |
| 4. | Air or incondensables in | 4. | Remove charge, evacuate and |
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| refrigerant circuit. |
| recharge. |
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| |
E. The compressor starts but shuts | 1. Too much or too little refrigerant. | 1. | Remove charge, evacuate and | |
down quickly. |
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|
| recharge. |
| 2. | Faulty compressor. | 2. | Determine the cause and replace |
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|
|
| compressor. |
| 3. | Air or incondensables in | 3. | Remove charge, evacuate and |
|
| refrigerant circuit. |
| recharge. |
| 4. | Changeover valve damaged or | 4. | Replace it. |
|
| blocked open (heat pump unit). |
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F. Clicking sound is heard from | In heating or cooling operation any | In heating or cooling operation any | ||
the air conditioner. | plastic parts may expand or shrink | plastic parts may expand or shrink due | ||
| due to a sudden temperature change | to a sudden temperature change in this | ||
| in this event, a clicking sound may | event, a clicking sound may occur. | ||
| occur. |
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EN
ENGLISH 17
J199.pmd | 17 | 31/03/2005, 9:54 PM |
