Roland FAVORITE ON-OFF Series Service Manual page 65

Test voltage
Close the power switch
Inspect connec�ons - �ghten
Change the transformer
Test voltage
Replace the ba�ery of the remote control
Replace the remote control
Clean or replace
Clean
Adjust the se�ng temperature
Turn the AC later
Adjust to cool mode
Turn off SILENCE func�on.
Turn the AC later
Power failure
The main power tripped
Loose connec�ons
Faulty transformer
The voltage is too high or too low
The remote control is powered off
Broken remote control
Dirty air filter
Dirty condenser fins
The se�ng temperature is higher/lower than the
room's(cooling/hea�ng)
The ambient temperature is too high/low when the
mode is cooling/hea�ng
Fan mode
SILENCE func�on is ac�vated(op�onal func�on)
Fros�ng and defros�ng frequently