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Friedrich MW09Y3H Air Filter
It is highly recommended that the filter is replaced for a clean one every 90 days or so as to maintain good airflow throughout the home. Filters are made in lots of filtering types which depends on your particular choice for how clean you want the air and air handler requirements. The height, length and width of the filter is not really a choice you make but rather a requirement of your furnace or handler.
Major indications of a faulty main filter
- The unit air filter looks brown and perhaps should be replaced as soon as you can
- Many pros have advised to swap out your air filter about every 90 days to help prevent bacteria from spreading too much
- With a light behind the air filter, the light cannot shine through the dirt filled filter
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If you decide on picking up or purchasing any Friedrich MW09Y3H part, do your due diligence and cross-check the correct model and also make a visual inspection so that you are positive that the correct air filter is being ordered. Once you have the part to install the part by yourself. Hire someone with experience in your town or city to replace the part.
Feel free to download your manual for help.
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