Before testing the drying fan, unplug the dishwasher
or shut off the power at the fuse
box or breaker
panel to avoid an electrical shock hazard.
When the final rinse and drain
cycle has completed the drying fan may start, depending upon which
cycle was selected. If the drying fan does not start, it can result
in slower drying and possibly increased water spotting on glasses.
To access the drying fan, remove
the lower panel located beneath the door. The panel is usually
held in place with two screws either above or below the panel.
It may be necessary to first open the door to the dishwasher to
reach the screws over the panel, then close the door to remove
the panel.
Note the location of the fan hood
inside the dishwasher's tub (usually back right or left) and you
will find the dryer fan beneath it in the access area. The fan
motor has two wires connected to it. Label the wires and connections
so that you can properly reconnect them later. The wires are connected
with slip on connectors. Firmly pull the connectors off of the
terminals (do not pull on the wire itself). You may need to use
a pair of needle-nose pliers to remove the connectors. Inspect
the connectors and the terminals for corrosion. If either is corroded
they should be cleaned or replaced.
Use a continuity tester or multitester
to test for continuity.
Set the multitester to the ohms setting X1. Touch one probe to
each terminal. You should get a reading of zero.