Portable Air Conditioner
User’s Manual
For Model
：
SKY-3A
/
SKYR-3A
Please read this user’s manual carefully to ensure proper use, maintenance and installation
Zhongshan United Star Electrical Appliance Manufacturing Co., Ltd.
No. 268,Dongfu Third Road,Suicheng Village,Dongfeng Town,Zhongshan City
Website: www.unitedstar.com.cn
26
Troubleshooting
Troubles
Possible Causes
Suggested Remedies
1. UNIT DOES NOT START
WHEN PRESSING POWER
BUTTON
2. Not cool enough
3. Auto Power-Off in
heating mode
4. Noisy
5. E1 Code
6. E2 Code
Note:
The real products may look different.
- Water full indicator lamp blinks, and water
tank is full
Dump the water out of the
water tank.
Reset the temperature
Reset the temperature
Make sure all the windows and
doors are closed.
Remove the heat sources if
possible
Connect or clean the exhaust
air hose.
Reset the temperature
Clean the air inlet.
- Room temperature is higher than the setting
temperature. (Electric heating mode)
- Room temperature is lower than the setting
temperature. (Cooling mode)
- The doors or windows are not closed.
- There are heat sources inside the room.
- Exhaust air hose is not connected or
blocked.
- Temperature setting is too high.
- Air inlet is blocked.
- Heating protection, when the temperature at
the air outlet exceeds 70°C, the unit will
power off automatically.
- The ground is not level or not flat enough.
- The sound comes from the flowing of the
refrigerant inside the air conditioner.
Room temperature sensor failed
Evaporator coil sensor failed
Restart the unit at enough lower
room temperature.
Place the unit on a flat, level
ground if possible
It is normal.
Replace room temperature
sensor (the unit can also work
without replacement.)
Replace evaporator coil sensor.
6. E3 Code
Water tank full
Please empty the water tank.
IS N
E
E
