haier AB422BCBAA - Manual (Page 20)

18
Maintenance
1. Check the following items:
If the air inlet and outlet of indoor and outdoor unit are blocked.
If the earth wire is proper.
If the wire connection is proper.
If there is abnormal phenomenon, please ask the after-sale
service staffs for help.
2. Cleaning the air filter or air inlet and casing
After cleaning the air filter, it must be reinstalled.
3. Turn on the power
1. In a sunny day, perform half-a-day Fan operation to make the
inner of the unit dry.
2. Cut off the power
If do not cut off power, the unit will consume power. Power
cutoff can save power.
3. Cleaning the air filter or air inlet and casing
After cleaning the air filter, it must be reinstalled.
For the details of cleaning, please refer to Maintenance.
Maintenance before and after the using season.
After using season
Before using season