10-2
TROUBLESHOOTING
SM VAR 1-A.1 GB
7
All components are
operating properly but no
cooling.
Refrigerant leak.
Check refrigeration system.
8
All components are
operating properly but no
heating.
Control problem or
Heater problem.
Check heaters power supply
if higher than 198 VAC. If OK
replace heaters, if heaters
power supply if lower than 198
VAC replace PCB.
9
One of the protections is
activated and compressor
is stopped with no
apparent reason.
Control problem or
refrigeration system
problem.
Perform diagnostics to detect
active protection, and take
action accordingly.
10
Water leakage from indoor
unit.
Indoor unit drainage tube
is blocked.
Check and open drainage
tube.
11
Filter LED comes ON after
512 hours of operation
Indication time to clean
the air filter
clean air-filter. Press the
RESET button.
CONTENT
