Specifications

Ducted Split Type Air-Conditioning
36
11.3 Checking items after installation
Malfunction Possible cause Solution
Ducted air
conditioning
unit can not
start-up
1. The power supply does not connect or improper
phase sequence.
2.The electricity leakage switch is switching
off for the leakage of electricity from the air
conditioner units
3. The voltage is too low
4. The operating button is closed
5.The control system is in malfunction
1. Connect the power supply or change two
random phase
2. Contact the service center of MUNDOCLIMA
3. Contact the dealer
4. Press ON/OFF button again
5. Contact the service center of MUNDOCLIMA
Ducted air
conditioning
unit stops
shortly after
start-up
Air outlet port or intake port of indoor unit or
outdoor unit is blocked
The abnormity of control system
The operation of pressure switch
Indoor room temperature is lower than 18
Tube sensor does not connect properly
Tube sensor is broken
1. Move the obstacles
2. Contact the service center of MUNDOCLIMA
3. Contact the service center of MUNDOCLIMA
4. Check if it’s necessary to operate the air
conditioner
5. Connect it properly
6. Contact the service center of MUNDOCLIMA
Heating is not
sufcient
1. Air lter is blocked
2. Air outlet port or intake port of indoor unit or
outdoor unit is blocked
3. Doors or windows are open
4. Refrigerant leakage
5. The outdoor temperature is lower than –5
6. Abnormal operation of the control system
1. Clean air lter
2. Move the obstacles
3. Close windows and doors
4. Contact the service center of MUNDOCLIMA
5.The performance of the unit is affected
6. Contact the service center of MUNDOCLIMA
Cooling is not
sufcient
1. Air lter is dirty
2. Air outlet port or intake port of indoor unit or
outdoor unit is blocked
3. Too many persons or a heat source in the room
4. Doors or windows are open
5. Too high temperature setting
6. Refrigerant leakage
7. Poor performance of room sensor
1. Clean air lter
2. Move the obstacles
3. If possible, clear heat sources
4. Close windows and doors
5. Lower set temp.
6. Contact the service center of MUNDOCLIMA
7. Change room sensor
Note: Check the previous items, please contact the nearest service center of MUNDOCLIMA and depict the air
conditioner model and its symptom if the problem cannot be solved.