For Service Technician Use Only
COMPONENT TESTING (Cont.)
Whirlpool
®
and KitchenAid
®
Filtration and Maytag
®
24" Microfiltration Dishwashers
n
3-15
Diverter Motor
This test will check the wiring to the diverter motor and the
diverter motor itself. The following items are part of the diverter
motor circuit:
n
Harness/Connection
n
Diverter Motor
n
Diverter Position Switch (see test on following page)
n
Control Board
Test Procedure
1.
Check for operation in Diagnostics Cycle. Listen for water
spray changing zones or inspect shaft with mirror to see it
rotating during diverter interval. If diverter is rotating, the
likely problem is with the diverter sensor (see test procedure
on following page). Verify that diverter disk is properly
installed on shaft.
2.
Are all the loads controlled by TRIAC not working?
¾
YES - check for open door switch, TRIAC fuse, or pilot
relay.
¾
NO - just the diverter valve. Go to step 3.
Strip Circuit - Diverter Motor
3.
Unplug dishwasher or disconnect power.
4.
Remove toe and access panels to access control board.
5.
Unplug connector P6 from control board.
6.
Check the diverter motor using an ohmmeter, measure the
resistance between P6-4 and P6-6.
¾
If the resistance is between 1100-1400 ohms, the diverter
motor and harness are good. Go to step 7.
¾
If outside the range, replace the diverter assembly.
¾
If an open circuit is detected, check connections and
harness continuity between control and diverter
assembly. If good, replace the diverter assembly.
7.
Reconnect P6 to control board.
8.
Set voltmeter to AC and connect leads to test-pads
P6-4 and P6-6 on the control board. Plug in dishwasher or
reconnect power.
9.
Start the Diagnostics Cycle and at the proper interval
measure for AC out of the control board between P6-4 and
P6-6 (Refer to Diverter Motor Strip Circuit below).
IMPORTANT:
The Diverter Motor must be connected to the
control board to measure voltage accurately.
¾
If no AC voltage is measured, replace the control board
and retest.
¾
If 120 VAC is measured and diverter is rotating, go to
step 10.
10.
Perform Diagnostics Cycle to verify repair.
¾
If diverter error still exists, perform diverter sensor test
procedure on following page.
11.
Unplug dishwasher or disconnect power.
12.
Reassemble all parts and panels.
13.
Plug in dishwasher or reconnect power.
DANGER
Electrical Shock Hazard
Only authorized technicians should perform
diagnostic voltage measurements.
After performing voltage measurements,
disconnect power before servicing.
Failure to follow these instructions can result in
death or electrical shock.
L1
BK P4-1
P6-6
P4-4
N
WH
BU
BU
Pin 3
Pin 1
P5 Pins 1 and 4 to test fuse
N.O.
K503
Pilot L1 Relay
(Also see Door
Switch Circuit)
Fuse
F500
Electronic Control
Electronic
Control
Triac
Diverter Valve Motor
1,100 Ω - 1400 Ω
120 V, 60 Hz, 3 W
P6-4
Содержание M-17
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