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On the new filter, find the arrow indicating the proper airflow direction. It must be installed correctly in the direction of the air flow. Google Image Result for The right (and wrong) way to install a furnace filter. How to install furnace filter correctly . Pull the old filter out and discard it. There is a right and wrong way to install an air filter. If not the c wire is not working. Is there such a thing as installing the furnace filter wrong? The arrow must face toward the furnace and away from the return duct that pulls the air in need of heating or cooling. Read the instructions in the furnace manual before purchasing these supplies as many of them may be included in the kit. They should just slide off. How to install furnace filters installing furnace filters is an easy job. If it isn’t, install a new filter to ensure your system is running at its efficient best. Finally, whatever filter you use, make sure you reinstall it correctly, with the ar

A good rule of thumb is to check the filter once a month. Table 1 lists recommended filter sizes. Furnace Honeywell Lennox AC Air Filter 16x25x5 HVAC A furnace filter’s job is to remove contaminants from your indoor air and keep air flowing properly through your heating and cooling system. How to change furnace filter lennox . Keeping your furnace filter clean is an important aspect of home maintenance, especially if the furnace is older. Turn off your furnace before checking or replacing the filter. If furnace is located in the basement then filter is placed at furnace between intake ducts and blower motor. On your lennox hvac unit, the filter cabinet is located next to the air handler or furnace. Furnace filter maintenance/signs of need of change. This will prevent the furnace from turning on while you are checking or replacing the filter. Remove the existing filter and insert the new filter, following the direction of the arrows printed on the unit. Table 1 fur