6-10
n
KitchenAid 2015 Microfiltration Dishwashers
TESTING
For Service Technician Use Only
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.
Water Heating / Heat Dry
This test will check the wiring to the heater element, hi-limit
thermostat and the heating circuit itself. The following items
are part of the heater circuit.
n
Harness/Connection
n
Heater Coil
n
Hi Limit Thermostat
n
Control Board
Test Procedure
Control may be programmed to disable the heater if it detects
a problem with the heating system. Run Diagnostics to clear
the control and allow the heater to turn on again. If heating
problem is not corrected, the control will disable the heater
again.
1. Unplug dishwasher or disconnect power.
2. Remove toe and access panels to access control board.
3. Disconnect P4 from the control board.
Strip Circuit – Heater Circuit
4. Using an ohmmeter, measure resistance between P4, pins
3 and 4.
¾
If the resistance is between 8-30 ohms, go to step 6.
¾
If an open circuit is detected, go to step 5.
5. Visually check the wire connections between the control
board, the heater element and the hi-limit thermostat. If
the connections look good, check for continuity across the
heater element and the hi-limit.
¾
Replace heater element or hi-limit thermostat if it is
electrically open.
¾
Repair or replace wire harness if test fails continuity.
6. Reconnect P4 to control board.
7. Set voltmeter to AC and connect leads to test-pads
P4-3 & P4-4 on the control board. Plug in dishwasher or
reconnect power.
8. Start the Diagnostic Cycle and at the proper interval
measure for AC out of the control between P4-3 and P4-4
using a voltmeter set to AC.
¾
If 120 VAC is measured and heater element is on, go to
step 9.
¾
If no AC voltage is measured, replace control board.
9. Perform Diagnostic Cycle to verify repair.
¾
If heater related error still exists, perform Water
Sensing test procedure on following page.
10. Unplug dishwasher or disconnect power.
11. Reassemble all parts and panels.
12. Plug in dishwasher or reconnect power.
4
Control Pinout
Meter Check of Loads and Fuses
Dishwasher Strip Circuits
The following individual circuits are for use in diagnoses. Do not continue with
the diagnosis of the appliance if a fuse is blown, a circuit breaker is tripped, or if
there is less than a 120-volt power supply at the wall outlet.
■
Unplug dishwasher or disconnect power.
■
Perform resistance checks. To check resistance of a component,
disconnect harness leads first.
Door Switch
Wash/Rinse
Water Heating/Heat Dry and Water Sensing with O.W.I. Sensor (Water/Air/Soil/Temperature)
Pump is washing. Control monitors temperature during water heating periods. See “Wash/Rinse” and “Water Sensing with O.W.I. Sensor (Water/Air/Soil/
Temperature)” circuits.
Fill
(Top)
W2
P5
P6
P7
P8
P9
P10
P11
P12
P13
-4 -3 -2 -1
-2 -1
-1
-6
-9
-1
-6
-1
-6
-1
-5 -6
-1 -3 -5
-1 -2 -4 -6
-1 -3
(OWI)
P12
(Wide Out)
P13
P4
P5
P6
BR
P7
BU
P8
RD
P9
V
P10
BR
P11
RD
P12
YL
Ω
of F9 Triac Fuse
Electronic Control
Electronic Control
Micro Pin
Micro Pin
Micro Pin
Micro Pin
K4
Motor (N) Relay
K3
Heater (L1) Relay
K2
Pilot (L1) Relay
K1
Heater (N) Relay
N.O.
N.O.
N.O.
N.O.
(To Wash Motor)
(To Heater)
(To Wash Motor,
Vent, and Triac Loads)
(To Heater)
N.O.
Door
Switch
Sensing
Input
Ref
P9-5
P10-4
Door
Switch
P9-6
13V
V
V
Motor Power
BK
N.O.
TURQ
(LBU)
K2
Pilot L1 Relay
(Also see Door
Switch Circuit)
Electronic Control
P4-2
P5-2
Pin 3
Pin 2
K4
Motor N Relay
(Also see Door
Switch Circuit)
WH
P5-1
P4-1
Sense Resistor
or Jumper
0
Ω
N
L1
V
Y
Y
AUX
Winding
6
Ω
- 10
Ω
CAP
23.5 µF
Run
Winding
3
Ω
- 7
Ω
Motor and Capacitor
(Wash Pump)
120V, 60 Hz, 190W typical
TURQ
(LBU)
Electronic Control
N.O.
L1
BK
Electronic Control
N.O.
K3
Heater L1 Relay
(Also see Door
Switch Circuit)
Hi-Limit
Thermostat
Opens
207°F - 217°F
(97°C - 103°C)
Heater Element
8
Ω
- 30
Ω
120V, 60 Hz
785W Wet
500W Dry
N.C.
P4-2
P4-3
P4-4
P4-1
N
Electronic Control
N.O.
K1
Heater N Relay
(Also see Door
Switch Circuit)
Electronic
Control
P12-6
P12-5
P12-4
P12-3
P12-2
P12-1
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Measure NTC resistance at P12-1 and
P12-3 connector disconnected from control.
Turbidity Drive
Foam Drive
OPT Sig
VCC
Ref
NTC
O.W.I. Sensor
Temperature: NTC Thermistor
46K
Ω
- 52K
Ω
at 77°F (25°C)
11K
Ω
- 13K
Ω
at 140°F (60°C)
Heater
BU/RD
BU/RD
BU/WH
WH
YL
YL
YL
YL
YL
YL
L1
BK
P4-2
P6-4
P10-1
P6-6
P6-7
P6-9
P4-1
Use top hole of jumper
W2 as test point for F9.
N.O.
K2
Pilot L1 Relay
(Also see Door
Switch Circuit)
Fuse
F9
Electronic Control
Electronic Control
Float
(In normal position,
holds switch closed.)
BR
BR
N.O.
Pin 3
Pin 1
Overfill
Float Switch
No test pad on P6-4.
Recommend using test pad on P10-1.
No test pad on P6-7.
Recommend using test pad on P6-6.
Electronic Control
Float Switch
Input
BR
BR
Pin 3
Pin 1
Triac
Fill Valve
890
Ω
- 1,090
Ω
120V, 60 Hz, 6W
WH
N
Содержание KDTM354E
Страница 14: ...1 10 n KitchenAid 2015 Microfiltration Dishwashers GENERAL INFORMATION Notes ...
Страница 30: ...2 16 n KitchenAid 2015 Microfiltration Dishwashers OPERATION Notes ...
Страница 120: ...6 20 n KitchenAid 2015 Microfiltration Dishwashers TESTING Notes ...
Страница 122: ...W10787848A KitchenAid 2015 Microfiltration Dishwashers with Advanced ProDry ...