Air Conditioning Centre KYR-25CO/AG, User Manual, Page: 22 / 23

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button - Room temperature is higher than
the set temperature. (Heating
mode)
Set a higher temperature
- Room temperature is lower than
the set temperature. (Cooling
mode)
Set a lower temperature
2. Not cool enough
- The doors or windows are not
closed. Make sure all the windows and
doors are closed.
- There are heat sources inside the
room. Remove the heat sources if
possible
- Exhaust air hose is not connected
or blocked. Connect or clean the exhaust
air hose.
- Temperature setting is too high Set a lower temperature
- Air inlet is blocked Clean the air inlet
3. Noisy
- The ground is not level or not flat
enough Place the unit on a flat, level
surface if possible
- Sound comes from the flowing of
the refrigerant inside the air
conditioner
It is normal
4. E0 Code Room temperature sensor failed
Replace room temperature
sensor (the unit can also work
without replacement.)
5. E1 Code
Condenser temperature sensor
failed Replace condenser
temperature sensor
6. E2 Code Water tank full when cooling
Remove the bung/stopper and
empty the water
6. E3 Code
Evaporator temperature sensor
failed Replace evaporator
temperature sensor
7. E4 Code Water tank full when heating Please empty the water tank
Note: Your product may look different to the images used in this instruction guide.