Trouble shooting
Before asking for service, check the following first.
| Phenomenon | Cause or check points | |
| The system does not restart | When unit is stopped, it won't restart | |
| immediately. | ||
| immediately until 3 minutes have elapsed | ||
|
| to protect the system. | |
|
| When the electric plug is pulled out and | |
|
| reinserted, the protection circuit will work | |
|
| for 3 minutes to protect the air conditioner. | |
| Noise is heard: | During unit operation or at stop, a swishing | |
| or gurgling noise may be heard. At first | ||
|
| minutes after unit start, this noise is more | |
|
| noticeable. (This noise is generated by | |
Normal |
| refrigerant flowing in the system.) | |
| During unit operation, a cracking noise may | ||
Performance |
| be heard. This noise is generated by the | |
inspection |
| casing expanding or shrinking because of | |
|
| temperature changes. | |
|
| Should there be a big noise from air flow in | |
|
| unit operation, air filter may be too dirty. | |
| Smells are generated. | This is because the system circulates smells | |
| from the interior air such as the smell of | ||
|
| furniture, cigarettes. | |
| Mist or steam are blown out. | During COOL or DRY operation, indoor unit | |
|
| ||
|
| may blow out mist. This is due to the sudden | |
|
| cooling of indoor air. | |
Multiple | Does not work at all. | Is power plug inserted? | |
Is there a power failure? | |||
check | |||
| Is fuse blown out? | ||
|
| ||
| Poor cooling | Is the air filter dirty? Normally it should be | |
| cleaned every 15 days. | ||
|
| ||
|
| Are there any obstacles before inlet and outlet? | |
|
| Is temperature set correctly? | |
|
| Are there some doors or windows left open? | |
|
| Is there any direct sunlight through the | |
|
| window during the cooling operation?(Use | |
|
| curtain) | |
|
| Are there too much heat sources or too many | |
|
| people in the room during cooling operation? |
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