Heat Pump Maintenance, the outdoor unit
Now, you can go to the outdoor unit to continue your heat pump maintenance. Start by shutting off the
power and checking with a meter to ensure it is de-energized.
Check all wiring connections to ensure they are tight. Look for signs of connections getting hot and
repair as necessary. Also, look for signs of pitting on the contacts of the contactor and replace it if
pitting is present.If you have a multimeter, you can use it to check the capacitance of the capacitors.
Check that their actual reading is within 6% of the listed rating.
You should also wash the outside unit. With a garden hose, wash the dirt, grass clippings, etc. out of the
DO NOT USE A PRESSURE WASHER AND BE CAREFUL NOT TO MASH THE FINS ON THE COIL. This
should be performed in the Spring, throughout the Summer as necessary, and in the Fall.