LG AHNW166A0 Owner's Manual

Page of 40
Owner’s Manual  37
ENGLISH
Maintenance and Service
Maintenance and Service
Maintenance activities
In order to ensure optimal availability of the unit, a number of checks and inspections on the unit and
the field wiring have to be carried out at regular intervals, preferably yearly. This maintenance should
be  carried out by your local agreed technician.
Call the service immediately in the following situations
1. Anything abnormal such as burning smell, loud noise etc. happen. Stop the unit and turn the
breaker off. Never try to repair by yourself or restart the system in such cases.
2. Main power cord is too hot or damaged.
3. Error code is generated by self diagnosis.
4. Water leaks from indoor unit.
5. Any switch, breaker (safety, earth) or fuse fails to work properly
User must carry routine checkup & cleaning to avoid unit’s poor performance.
In case of special situation, the job must be carried out by the only service person.
When the unit is not going....
• If the product is not used for long time, we strongly recommend 
NOT TO SWITCH OFF THE POWER SUPPLY to the product.
• If power is not supplied, some special product-protecting actions 
(such as water pump anti-locking) will not performed.
CAUTION