Check and replace air conditioning filters according to maintenance plan. In dusty or congested areas, replacement may be necessary in advance.
If the air flow in the vent obviously decreases, the filter may be blocked. Check the filter and replace it if necessary.
In order to prevent damage to the system, make sure that the filter is installed. If the filter is not used in the air conditioning system, the system may be damaged.
Do not clean the filter with water.
When cleaning or replacing air-conditioning filters, the air-conditioning system must be shut down first.