Troubleshooting - Carrier 53 KLN 009 Owner's Manual

53 KLN 009/012 - 53 QNL 009/012

Troubleshooting

Trouble
Unit does not operate.
Cooling is abnormally below.
Heating is abnormally low
(heat pump only).
Unit stops during operation.
Air cleaning does not operate.
If the above actions do not correct the operation, consult the dealer from whom you bought the unit.
Check Points
• Check that the power cord is plugged into
the wall outlet.
• Has the circuit breaker tripped or the fuse
blown?
• Has there been a power failure?
• If the "UNIT ON" lamp flashes
on and off?
• Is the voltage too low?
• Is the filter blocked with dust?
• Has the temperature been
set properly?
• Are the windows and doors open?
• Is anything obstructing the outdoor unit?
• Is the fan speed too low?
• Is the operation mode FAN or AUTO?
• Is the filter blocked with dust?
• Has the temperature been
set too low?
• Are the windows or doors open?
• Is anything obstructing the outdoor unit?
• Has the OFF time operated?
• Has the room temperature reached the
set temperature?
• On the indoor unit display, is the air
cleaning lamp turned off and the checking
lamp turned on?
ENGLISH
Action
• Insert the power cord into the wall outlet.
• Reset the circuit breaker or replace the
fuse with the specified replacement fuse.
• Restart operation when power
is resumed.
• Call your service representative.
• Confirm the available voltage.
• Clean the air filter.
• Check and reset it if necessary.
• Close the windows and doors.
• Remove the obstruction.
• Change the fan speed
selection.
• Change to cooling operation or reset
temperaure.
• Clean the air filter.
• Check and reset it if necessary.
• Close the windows and doors.
• Remove the obstruction.
• Switch OFF timer function.
• Normal operation.
• Press the RESET button.
Air cleaning lamp is turned on after a
minute.
If not, call service representative.
GB - 19