PARTS OF THE CONDENSING UNIT:
These motors run pretty hot to the touch. Normal length of comfortable touch
of a motor that had been running might be about one or two seconds before
discomfort. This is normal. Anything less than this amount of time would
indicate an overheating problem. The bearings might be bad or the motor might
be internally damaged electrically or mechanically. It might have a bad
capacitor (located in the control panel and discussed later). It might just
be so dirty, that it overheats. Clean it. Sometimes, the condenser coils are
so clogged that the air is excessively hot coming over the motor. Keep these
clean also. These motors have an internal thermostat that switches them off
if they get too hot and then when it cools it will reset again. So a motor
might run for a while, shut off, and run again. A compressor will not run
long without the fan running. It also will shut off, cool, and run again.
Here is a better view of another motor.
These types of motors are usually rather small in horsepower (1/10th to
3/4). They are most often sealed on the ends and sides to keep out water,
etc. and if they point upward with the shaft, then a rain shield is added
to help keep the water out of the bearing. Often these bearing are also
sealed and cannot even be oiled. More often there is no real bearing, but
rather is a bushing. This type surely needs oiling more often. Usually once
a year is fine. If it is a heat pump type unit that runs all year, then it
may require more oiling.
If it "oils", then there is provided a way. Usually, a passageway from the
bearing or bushing extends to the side of the motor at each end--one for
each bearing. It will have a metal or plastic plug and will rarely have a
spring-loaded cap except on some really old motors. Simply remove the plug
and apply the oil. Apply only the equivalent of five "eye dropper" drops per
oil port on each bearing and no more. Too much oil will overflow into the
WINDINGS and soften or weaken the enamel coating and the motor may short
out in a few years. Replace the plug. Always replace the plug to keep out
any dirt. Dirt is a killer for bearings so use clean oil and keep the tip
of the applicator clean.
| Blade Assembly | Mounting Bracket | |
| Capacitors | Contactors | Condenser Coils |
| Line Valves | Compressor Feet | Compressors |
