11
Troubleshooting Guide
Before you call for or request servicing, troubleshoot a problem by performing following checks:
SYMPTOM
Diagnostic
Unit will not operate
-- Is there a power failure?
-- Has a switch been turned off, a circuit breaker tripped
or a fuse blown?
-- Is the timer operating?
-- Are the batteries used in the remote controller
exhausted?
-- Are the batteries used in the remote controller loaded
properly?
Poor cooling or heating performance
-- Are the air filters dirty?
-- Is air flow unrestricted in & out of indoor & outdoor
units?
-- Are the temperature and mode settings correct?
-- Have the windows or doors been left opened?
-- Is fan speed on high and louvers allowing maximum
flow?
-- Is direct or strong sunlight shining into the room in
cooling operation?
-- Are there other heating devices or computers
operating, or too many people in the room in cooling
operation?
-- Is the SILENCE function is activated? Under SILENCE
operation, noise reduction is prioritized and the air -
conditioning performance may become lower.
Indicator lamps continue flashing
-- The unit may stop operation or continue to run in a
safety condition (depending on models). Waiting for about
10 minutes, the fault may be recovered automatically. if
not, disconnect the power and then connect it again. If
the problem still exists, disconnect the power and contact
the customer service center.
Error code appears on the indoor unit such as:
E0,E1,E2.... P1,P2,P3.....or F1, F2,F3
If the problem persists after you have performed these checks or diagnostics, immediately stop operation
and contact the authorized service center. Be sure to inform them details malfunctions and unit model number.
In the case of ANY of the following, turn off the unit immediately!
-- Power cord is damaged or abnormally warm.
-- Burning odous are smelled.
-- Loud or abnormal sounds are heard.
-- Power fuse keeps blowing or a circuit breaker trips frequently.
-- Water or other objects fall into or out of the unit.
DO NOT ATTEMPT TO CORRECT THESE ITEMS YOURSELF!
CONTACT THE AUTHORIZED SERVICE PROVIDER!
