Heat Pump maintenance is not difficult to do for a DIY person. If the heat pump no longer provides enough cooling, try cleaning it first before calling for service to an air conditioning contractor. Most of the time dust is the only reason your heat pump is nor performing. One place to check is the furnace filter or the air handler if you do not have a furnace. The other place to clean is condensing coil - the
Heat Pump Maintenance
What to Clean in a Central Heat Pump
outdoor part of the heat pump. In basic heat pump the condensing coil is unprotected and exposed. You can easily see dirt as on the closeup of a dirty coil below. This
dirt is a mix of dry dust and lint. All it needs is a washing with a garden hose. When checking air conditioners with the coil guard, outside appearance of the unit does not tell much. An air conditioner will remain clean and shiny for years. Only by looking under the guard you can tell if the coil needs maintenance. A closeup on the right is showing a coil that needs maintenance. Again, it is the same mix of dry dust and lint. Never use chemicals or power wash. Water from a garden house will do a nice job cleaning the air conditioner. Frequency of maintenance depends on the area you live in. In some locations air conditioners run for years without cleaning. In other areas with high amount of lint in the air maintenance needs to be done twice a year.