MEZO
EN
43
www.eberg.eu
Note: The real products may look different.
9. TROUBLESHOOTING
Troubles
Possible Causes
Suggested Remedies
Unit does not start when
pressing power button
Water full indicator lamp blinks, and
water tank is full.
Dump the water out of the water
tank.
Room temperature is higher than
the setting temperature. (Electric
heating mode)
Reset the temperature
Room temperature is lower than
the setting temperature. (Cooling
mode)
Reset the temperature
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.
Reset the temperature
Air inlet is blocked.
Clean the air inlet.
Auto Power-Off in heating
mode
Heating protection, when the
temperature at the air outlet
exceeds 70°C, the unit will power
off automatically.
Restart the unit at enough lower
room temperature.
Noisy
The ground is not level or not flat
enough
Place the unit on a flat, level
ground if possible
The sound comes from the flowing
of the refrigerant inside the air
conditioner
It is normal
E1 Code
Room temperature sensor failed
Replace room temperature
sensor (the unit can also work
without replacement.)
E2 Code
Evaporator coil sensor failed
Replace evaporator coil sensor.
E3 Code
Water tank full
Please empty the water tank.
