| 12. | TROUBLE SHOOTING |
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| Problem | Cause | Solution | |
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| Power failure or plug is not | Restore the power supply or | |
The unit doesn’t run | correctly inserted in the socket | reset LCDI | ||
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| Circuit breaker or line fuse has | Call your Electrician | |
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| been tripped |
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| Power supply voltage is too low | Call your Electrician | |
The unit has only fan, | The room temperature is not at | Check your room temperature | ||
no cooling even | working range |
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though it is in the | The set temperature is too high | |||
cooling mode |
| temperature | ||
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| The filter is dirty and obstructed | Clean the filer | |
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| Evaporator air is blocked | Remove the blockage | |
The unit seems to do | The air intake and outlet ducts of | Check both of the ducts | ||
little cooling or does | the condenser side are obstructed |
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not cool quickly | There is direct sunshine into room | Close the curtains or blinds | ||
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| The unit is set on dehumidifying | Set at cooling mode | |
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| mode |
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| Set at low fan speed | ||
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| speed | |
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| Windows or doors are open. | Close all of the windows and | |
The unit has worked |
| doors when the unit is working | ||
for a long time, but the | Too many people in the room | Turn on other cooling unit | ||
room is not cold | Something else in the room | Turn off these products | ||
enough | produces heat |
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| The room is not well insulated, |
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| such as sunrooms, garages, |
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| attics, etc. |
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| The unit is not sitting evenly | Place the unit on an even surface | |
Too noisy | The floor underneath the unit is | Change the position | ||
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| uneven |
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The unit stops cooling | The environment is too wet and | Empty the water inside the unit. | ||
suddenly, only the fan | the condensate water in the unit is | Connect a pipe to the upper drain | ||
works and the | full | port (refer to drawing in PARTS | ||
| Of Unit) at the back of the unit | |||
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| then restart the unit. Wait for | |
| display on the |
| approximately 1 hour to let | |
control pane is on |
| condensor side fan blow out the | ||
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| water | |
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| 21 |
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Heat Controller, Inc. 1900 Wellworth Avenue Jackson, MI 49203
