23
Troubleshooting
Before making an inquiry or a request for repair, please check the following.
If the problem persists, consult your dealer.
Not a problem
This case is not a problem.
Check
Please check again before requesting
repairs.
The air conditioner does not operate
Case
Description / what to check
OPERATION lamp is off.
• Has the circuit breaker been tripped or the fuse blown?
• Is there a power failure?
• Are batteries set in the remote controller?
OPERATION lamp is blinking.
• Turn off the power with the circuit breaker and restart operation with the remote controller.
If the OPERATION lamp is still blinking, check the error code and consult your dealer.
Page 26
The air conditioner suddenly stops operating
Case
Description / what to check
OPERATION lamp is on.
• To protect the system, the air conditioner may stop operating after sudden large voltage
fl uctuations. It automatically resumes operation in about 3 minutes.
OPERATION lamp is blinking.
• Are the air fi lters dirty?
Clean the air fi lters.
• Is there anything blocking the air inlet or air outlet of the indoor unit or outdoor unit?
Stop operation and after turning off the circuit breaker, remove the obstruction. Then restart
operation with the remote controller. If the OPERATION lamp is still blinking, check the error
code and consult your dealer.
Page 26
The air conditioner does not stop operating
Case
Description / what to check
The air conditioner continues
operating even after operation is
stopped.
Immediately after the air conditioner is stopped
• The outdoor unit fan continues rotating for about another 1 minute to protect the system.
While the air conditioner is not in operation
• When the outdoor temperature is high, the outdoor unit fan may start rotating to protect
the system.
The room does not cool down / warm up
Case
Description / what to check
Air does not come out
In HEAT operation
• The air conditioner is warming up. Wait for about 1 to 4 minutes.
• During defrosting operation, hot air does not fl ow out of the indoor unit.
When the air conditioner operates immediately after the circuit breaker is turned on
• The air conditioner is preparing to operate. Wait for about 3 to 20 minutes.
Air does not come out /
Air comes out.
Is the airfl ow rate setting appropriate?
• Is the airfl ow rate setting low, such as “Indoor unit quiet” or “Airfl ow rate 1”? Increase the
airfl ow rate setting.
Is the set temperature appropriate?
Is the adjustment of the airfl ow direction appropriate?
Air comes out.
• Is there any furniture directly under or beside the indoor unit?
• Is the unit you are operating or another unit running in ECONO operation?
Page 14
• Are the air fi lters dirty?
• Is there anything blocking the air inlet or air outlet of the indoor unit or outdoor unit?
• Is a window or door open?
• Is an exhaust fan turning?
When the Need Arises
When the Need Arises
01_EN_3P552666-2A.indd 23
21-Feb-19 10:46:41 AM
