9
Table 1—Periodic Maintenance
INDOOR UNIT
EVERY 3 MONTHS
EVERY 6 MONTHS
EVERY YEAR
Clean Air Filter*
Change Remote Control Batteries
S
S
S
OUTDOOR UNIT
EVERY 3 MONTHS
EVERY 6 MONTHS
EVERY YEAR
Clean Outdoor Coil from Outside
Clean Outdoor Coil from Inside†
Blow Air Over Electric Parts†
Check Electric Connection Tightening†
Clean Fan Wheel†
Check Fan Tightening†
Clean Drain Pans†
S
S
S
S
S
S
S
* Increase frequency in dusty zones.
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Maintenance to be carried out by qualified service personnel. Refer to the Installation Manual
Table 2—Troubleshooting
PROBLEM
POSSIBLE CAUSE
SOLUTION
Indoor unit emits a bad odor on
start- up
Air filter dirty
Output air still has odor after cleaning filter.
Clean the air filter
Contact your service representative.
You hear water flowing noise
when the unit is running
This is normal and is the refrigerant flowing
through the system.
No maintenance required
Indoor unit produces a mist
when the air conditioner is
running
This is normal cooling and is caused by high
humidity and temperature in the room.
No maintenance required. Mist should stop as
room is cooled down and the humidity is removed.
Wireless remote control does
not work
Batteries are dead.
Unit needs to be reset.
See battery replacement section in this manual
and replace batteries.
Turn off power to indoor unit. Remove plug from
wall and then reinsert plug. Restart unit.
Water leaks into room from
Indoor unit
Condensing water has overflowed
Check indoor condensing drain or call your
representative.
Unit/System Does Not Work
To protect the unit upon an immediate restart
after a stop, the system controller delays
the unit for 3 minutes before allowing the unit
to start back up.
The circuit breaker has tripped or a fuse
has blown.
Power failure.
Error codes displayed
Voltage is too low.
After turning unit off, wait at least 3 minutes before
trying to restart.
Reset the circuit breaker or replace the fuse with
the specified replacement fuse.
Restart operation when the power is restored.
Call your service representative.
Call your service representative.
Cooling is Not Working
Properly
The filter is blocked with dust.
Temperature is not set properly.
A window or door is open.
The outdoor unit is obstructed.
The fan speed is too low.
The operation mode is in Fan instead of
Cool.
Clean the air filter.
Check the temperature and reset if necessary.
Close the window or door.
Remove the obstruction.
Change the fan speed selection.
Change the operating mode to Cool or reset the
unit.
Heating is Not Working
Properly
The filter is blocked with dust.
Temperature is set too low.
A window or door is open.
The outdoor unit is obstructed.
Clean the air filter.
Check the temperature and reset if necessary.
Close the window or door.
Remove the obstruction.
Unit Stops During Operation
The Off timer is not operating correctly.
Error codes displayed
Restart the operating mode.
Call your service representative.
