Installation Guide
Table Of Contents
23
IX. Troubleshooting
Do not repair or disassemble the air conditioning by yourself. Unqualified repair will 
lead to failure of the 
warranty card, and may cause damage to users or their properties.
Problems  Reasons  Solutions 
The air 
conditioning does 
not work. 
There is no electricity.  
Turn it on after connecting it to a socket with 
electricity.  
The overflow indicator displays "FL".    Discharge the water inside. 
The ambient temperature is too low or 
too high 
Recommend to use the machine in at the 
temperature of 7-35  ℃  (45-95  ℉).   
In cooling mode, the room temperature 
is lower than the set temperature; in 
heating mode, the room temperature is 
higher than the set temperature. 
Change the set temperature.  
In dehumidification mode, the ambient 
temperature is low. 
The machine is placed in a room with an 
ambient temperature of greater than 17 ℃  (62 
℉). 
The cooling effect 
is not good 
There is direct sunlight.   Pull the Curtain.   
Doors or windows are open; there are a 
lot of people; or in cooling mode, there 
are other sources of heat.  
Close doors and windows, and add new air 
conditioning.  
The filter screen is dirty.   Clean or replace the filter screen.  
The air inlet or outlet is blocked.   Clear obstructions.   
Big Noise 
The air conditioning is not placed on a 
flat surface.   
Put the air conditioning on a flat and hard place 
(to reduce noise). 
compressor does 
not work.   
Overheat protection starts.  
Wait for 3 minutes until the temperature is 
lowered, and then restart the machine. 
The remote 
control does not 
work. 
The distance between the machine and 
the remote control is too far. 
Let the remote control get close to the air 
conditioning, and make sure that the remote 
control directly faces to the direction of the 
remote control receiver. 
The remote control is not aligned with 
the direction of the remote control 
receiver. 
Batteries are dead.    Replace batteries.   
Displays 'E1'.  The room temperature sensor is 
abnormal.   
Check the pipe temperature sensor and related 
circuitry. 
Displays 'E2'  The pipe temperature sensor is 
abnormal.   
Check the room temperature sensor and related 
circuitry. 
Note:  If  problems  not  listed  in  the  table  occur  or  recommended  solutions  do  not 
work, please contact the 
professional service organization.
X. Addendum
Fuse Parameters 
Type: 5H or 5TE or 932 or 524 
Voltage: 250V
Current: 3.15A 










