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When the Need Arises
When the Need Arises
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.
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The air conditioner suddenly stops operating
Case
Description / what to check
OPERATION lamp is on.
• T
o protect the system, the air conditioner may stop operating after sudden large voltage
fluctuations. It automatically resumes operation in about 3 minutes.
OPERATION lamp is blinking.
•
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.
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•
Are operation modes all the same for indoor units connected to the outdoor unit in the multi
system? If not, set all indoor units to the same operation mode and confirm that the lamps blink.
•
If the lamps stop blinking after the above steps, there is no malfunction.
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 flow 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 15 minutes.
Air does not come out /
Air comes out.
Is the airflow rate setting appropriate?
•
Is the airflow rate setting low, such as “Indoor unit quiet” or “Airflow rate 1”? Increase the airflow rate setting.
Is the set temperature appropriate?
Is the adjustment of the airflow direction appropriate?
Air comes out.
•
Is there any furniture directly under or beside the indoor unit?
•
Is the air conditioner in ECONO operation or OUTDOOR UNIT QUIET operation?
Page 18
•
Are the air filters 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?
Troubleshooting
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