The fan is connected by two or three wires.
Label the wire placement on the fan before disconnecting the
wires. The wires are connected to the fan with slip-on connectors.
Firmly pull the connector off (do not pull on the wire) of
the fan's terminal. You may need to use a pair of needle-nose
pliers to remove the connectors. Inspect the connectors and
the terminals for corrosion. If the connectors are corroded
they should be replaced.
Spin the fan blade, it should move smoothly
and freely. If the movement is not smooth, the motor should
be replaced.
Test the fan for continuity
using a multitester.
Set the multitester to the ohms setting X1. Place a probe
on each terminal. The multitester should display a reading
of zero ohms. If the fan does not pass this test, it should
be replaced.
