Heartland Owners Forum
http://manuals.heartlandowners.org
Landmark 365 User Guide V1.1.pdf
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Version 1.1, March 10, 2016
Cleaning return filters
The ceiling registers for the air conditioning are aligned in two rows. The off-door-side registers supply
cold air to the living area and bedroom, while the door-side registers are air returns with filters. The
filters need to be cleaned frequently to maintain efficient operation of the air conditioners. If filters
build up too much dirt, return airflow is restricted which can result in icing up of the air conditioner with
loss of cooling. In the pictures above, the register on the right, with the dark material, is the return.
The register can be pried off with your fingers in order to reach the filter. It snaps back into place.
The register assembly has three parts: the register that directs the airflow, an interior fitting that holds
the filter in place, and the filter itself. Once the assembly has been removed from the ceiling, the
retaining tabs that hold the interior fitting can be pressed to release the fitting. Remove the fitting and
take out the filter to wash it.
