For good heat pump fan health and long life from your stand-up unit, it is a good idea to follow some basic maintenance steps that the pros from service centers do. Following a few simple tips can keep your unit running clean and healthy at a low cost for operation. Your fans life is going to be better maintained by actually making sure other factors are not effecting it.
Your heat pump fan will work harder if the filters are clogged and not allowing a smooth flow of air, the back pressure can create a vacuum that will compress the air below your fan causing it to work harder and put stress on the motor. Simply take out and clean or replace the air filter every one or two months during operation of the unit, be sure to shut off the air system while doing maintenance to avoid injury. You can find what types of filter you need by reading the specifications that are located on the side of the unit. On some models you can actually clean the filters out using an air compressor line and blowing from the outtake side
Fan and Blower Cleaning
Another way to extend the efficiency and life of your heat pump fan is by cleaning the blades of any buildup or residue. Turn off the main power to the unit and then you can open the top panel to access the fan blade and blower area. You can use a plastic bristle brush and scrub down the fan blades themselves and clean out the residue from the units base and blower using a vacuum with a pole extension attached t it. You can also use a vacuum brush extension head to clean out the unit and the fan blades as well. This build-up if left unchecked will cause the fan to run unevenly, which will effect its efficiency and possibly burn out the fan motor.
Another thing that will effect the operation of the heat pump fan is plant growth and other types of foliage getting sucked into the sides of the unit. This causes the fan to also create a vacuum back pressure that can shorten the life of the unit. Be sure to keep all plant cover at least 2 to 3 feet from your blower unit outside the home. It is common to hide the unit in the yard using plants and bushes, you simply want to ensure that they can not be pulled into the sides of the unit where the air is pulled in, or across the top where the fan blows out the heat exhaust.
Clearing the Thermostat Area
Inside your home you want to also be sure that heated lights or lamps are not close to the thermostat for your blower. If you have heat inducing devices near the thermostat it can give an inaccurate reading of the actual temperature in the home or office, causing the heat pump fan to run even when it not needed. This will also cut down on the utility bill as your blower will not turn on unless it is getting a true reading of the inside temperature.