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Issue
Possible Causes
Both the indoor unit and
outdoor unit make noises
A low hissing sound during operation: This is normal and is caused by refrigerant gas
flowing through both indoor and outdoor units.
A low hissing sound when the system starts, has just stopped running, or is defrosting:
This noise is normal and is caused by the refrigerant gas stopping or changing direction.
The outdoor unit makes
noises
The unit will make different sounds based on its current operating mode.
Dust is emitted from either
the indoor or outdoor unit
The unit may accumulate dust during extended periods of non-use, which will be
emitted when the unit is turned on.
This can be mitigated by covering the unit during long periods of inactivity.
The unit emits a bad odour
The unit may absorb odours from the environment (such as furniture, cooking,
cigarettes, etc.) which will be emitted during operations.
The unit's filters have become moldy and should be cleaned.
The fan of the outdoor unit
does not operate
During operation, the fan speed is controlled to optimize product operation.
