Kaysun ONNIX KAY-D 26 DN7, Owner'S Manual

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Troubleshooting
When troubles occur, please check the following points before contacting a repair company.
Problem Possible Causes Solution
Poor Cooling
Performance
Temperature setting may be higher
than ambient room temperature
Lower the temperature setting
The heat exchanger on the indoor
or outdoor unit is dirty
Clean the affected heat exchanger
The air filter is dirty
Remove the filter and clean it
according to instructions
The air inlet or outlet of either unit is
blocked
Turn the unit off, remove the
obstruction and turn it back on
Doors and windows are open
AMake sure that all doors and
windows are closed while operating
the unit
Excessive heat is generated by
sunlight
Close windows and curtains during
periods of high heat or bright
sunshine
Too many sources of heat in
the room (people, computers,
electronics, etc.)
Reduce amount of heat sources
Low refrigerant due to leak or long-
term use
Check for leaks, re-seal if necessary
and top off refrigerant
S I L E N C E f u n c t i o n i s
activated(optional function)
SILENCE function can lower
product performance by reducing
operating frequency. Turn off
SILENCE function
Troubleshooting