York YMFFZC018-024BAM-AFX, User Manual

Page: 9 / 13

owner’s manual
7
Clean the heat exchanger.
Clean the air filter.
Eliminate all dirties and make air
smooth.
Close doors and windows.
Make curtains in order to shelter from
sunshine.
Reduce heat source.
AC cooling capacity reduces (normal).
Check leakage and rightly recharge
refrigerant.
Air flowing normally but
completely can't cooling
Units start or stop frequently
Low cooling effect
Low heating effect
Power failure.
Power switch is off.
Fuse of power switch may have burned.
Batteries of remote controller exhausted
or other problem of controller.
Temperature is not set correctly.
Be in 3 minutes protection of
compressor.
Refrigerant is too little or too much.
Air or no concretingc gas in the
refrigerating circuit.
Compressor is malfunction.
Voltage is too high or too low.
System circuit is blocked.
Outdoor unit and indoor unit heat
exchanger is dirty.
The air filter is dirty.
Inlet/outlet of indoor/outdoor units is
blocked.
Doors and windows are open
Sunlight directly shine.
Too much heat resource.
Outdoor temp. is too high.
Leakage of refrigerant or lack of
refrigerant.
Wait for the comeback of power.
Switch on the power.
ReplLocation:
Replace the batterises or check the
controller.
Set the temperature properly.
Wait.
Check leakage, and rightly recharge
refrigerant.
Vacuum and recharge refrigerant.
Maintenance or change compressor.
Install manostat.
Find reasons and solution.
Use heating device.
Close doors and windows.
Check leakage and rightly recharge
refrigerant.
Outdoor temperature is lower than 7 C
Doors and windows not completely
closed.
Leakage of refrigerant or lack of
refrigerant.
Solution Symptoms Causes
Unit does not start
Table 8-2
Table 8-1
12
Malfunction Running lamp Timer lamp Defrosting lamp Alarm lamp
In-outdoor unit communication
checking channel is abnormal
Room temperature senson
checking channel is abnormal
Collision model malfunction
Outdoor unti malfunction
Water-level alarm malfunction
LED
flash
LED
flash
LED
flash
LED
flash
LED
Slow flash