4
2
conditioni
ng unit
stops
shortly
after
start-up
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
2. Contact the service center of
FISHER
3. Contact the service center of
FISHER
4. Check if it’s necessary to operate
the air conditioner
5. Connect it properly
6. Contact the service center of
FISHER
Heating is
not
sufficient
1. Air filter 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 filter
2. Move the obstacles
3. Close windows and doors
4. Contact the service center of
FISHER
5.The performance of the
unit is affected
6. Contact the service center of
FISHER
Cooling is
not
sufficient
1. Air filter 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 filter
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
FISHER
7. Change room sensor
Note: Check the previous items, please contact the nearest service center of
FISHER
and depict the air
conditioner model and its symptom if the problem cannot be solved.
