Possible causes of this alert
Low pressure can be from a sudden leak in the air ducts or might indicate that you have holes and/or cracks in your ductwork. Low pressure will bring down the efficiency of your HVAC system.
Missing air filter
An HVAC system without an air filter will damage the system and not give us proper readings. This can lead to large amounts of dust and allergens to not be captured by the air filter and continually to circulate inside your home.