17. TROUBLESHOOTING
Before contacting the HVAC technician, perform the following simple checks. They may save you the time and expense of an unnecessary call.
Problem | Cause | Solution |
The unit does not work at all. | The unit is not plugged in. | Plug in the power cord. |
| There is no power at the receptacle. | Check the fuses and the |
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| circuit breaker. |
| The ON timer is activated. | Cancel the timer |
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Cooling performance is poor. | The wrong function mode was selected. | Select the correct function mode. |
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| (auto, cooling) |
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| The air exhaust hose or the air intake | Remove any object that may be |
| hose is blocked or broken. | obstructing air circulation. Repair |
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| the hose or change it. |
| The air filters are dirty. | Clean filters. |
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| There is an obstacle in front of the unit. | Clear all obstacles. |
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The unit is operating, but the air | The compressor is not yet operating. | Wait |
remains warm. |
| protection circuit to turn off. |
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| The temperature is incorrectly set. | Adjust the temperature setting. |
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The compressor stops running after a | There is not enough voltage. | Unplug other appliances that may |
short time. |
| overload the electrical circuit |
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| breaker. |
| The unit is connected to an | Remove the extension cord or |
| extension cord. | use a proper extension cord for air |
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| conditioners. |
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Water is leaking. | The drain tube is clogged. | Remove the blockage. |
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The unit is making unusual noises. | The unit is not level. | Place the unit on a level surface. |
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The unit is working, but the room is | The room’s BTU demand is greater | The room needs a greater cooling |
still not cool enough. | than the unit’s capacity. | capacity: add another unit or |
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| upgrade to a unit with greater BTU |
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| capacity. |
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The evaporator fan is noisy. | Cross flow fan is not well | The unit needs to be repaired, or |
| balanced. | parts must be replaced. |
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The condenser fan is noisy. | The fan is rubbing against the | The unit needs to be repaired, or |
| plastic housing. | parts must be replaced. |
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The air conditioner does not operate | There is an obstacle between the | Make sure the signal path is clear. |
with the remote control. | remote control and the signal receiver. |
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| The batteries are weak. | Replace the batteries. |
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| You are too far from the unit. | Get closer |
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| (Within 23 ft). |
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CAUTION:
Have repairs performed by a certified HVAC technician.
Owner’s manual _17