What happens if furnace filter is installed backwards?

How do I know if I put my furnace filter in backwards?

Reminder: The arrow on the filter always points in the direction that the air flows through the unit. If you remember that the arrow should always point toward the heating compartment of the furnace you won’t need to worry about which way to install the filter or which side of the filter goes up or down.

Which way does arrow point on furnace filter?

The arrow points in the direction of the airflow. The point should go toward the inside of the furnace compartment. If the filter goes inside the ductwork, it should point toward the air handler or the furnace.

What happens if you put a filter drier in backwards?

When installing a new filter drier, an arrow on the filter drier’s housing will indicate which direction refrigerant is designed to flow. If installed backwards, the filter drier will become useless. … Overheating may scorch the internal filters, drying agents, and other important parts of the dryer.

Are air filters reversible?

The filter is designed to remove a lot of unwanted debris, but only when installed in a certain direction. If you set your filter up backwards, the normally collective end of the device will not face the air supply. In effect, your filter will help keep debris in the air.

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Which way should an air filter face?

To properly insert a new filter, look for the arrow! The arrow on your filter should always face the unit and away from the return air duct that carries the air that will be heated or cooled. HVAC systems push the cool or warm air out and pull spent air in, recirculating the air throughout your home.