Please allow about 1 minute to download based on 28.8 modem speed.
In this example, the heat pump has a filter rack. Some units require you to remove one of the panels on the air handler. Usually the lower panel. If so, there should be a label saying "Filter Access".
Hold the filter up to the light. You should be able to see right through most filters if they are clean. Be sure to check your filters from both sides. One side might look clean but the other side could be very dirty.
Hannabery HVAC is a member of the Independent Quality Alliance, (IQA) "Service Professionals Committed To Excellence"
