3-8
n
Built-In Single and Double Wall Oven
ELECTRONIC CONTROL DIAGNOSTIC MODE AND COMPONENT TESTING
FOR SERVICE TECHNICIAN’S USE ONLY
11
Component Testing Chart - Oven
To properly check for voltage, complete the following steps:
1.
Unplug oven or disconnect power.
2.
Connect voltage measurement equipment to check
points.
3.
Plug in oven or reconnect power and confirm voltage
reading.
4.
Unplug oven or disconnect power.
*NOTEs:
■
Disconnect the harness from the board before performing measurements.
■
See the following table for connector pin identification.
Modes
Relay Logic
Bake
Broil
Conv
Ring
Conv
Fan
Bake (Non-Convect cavity)
C
C
NA
NA
Bake (Convect cavity)
C
C
C
C
Broil
-
O
-
-
Bread Proof
C
C
-
-
Convect Bake
C
C
C
C
Convect Broil
-
O
-
C
Convect Roast
C
C
C
C
Self-Clean
C
C
-
-
LEGEND
Relay Off
Relay Cycles
Relay On
Not Available
-
C
O
NA
Component
Serviceable Side
Check Points
Copernicus
Results-Resistance Results-Voltage
Lights
Front
P5-2 to N (J8-2)
0
Ω
to 40
Ω
120 VAC
Latch Switch
Front
P3-7 to P3-5
Open circuit
Door Switch
Front
P3-6 to P3-5
Closed circuit with
oven door closed
Latch Motor
Front
P5-1 to N (J8-2)
500
Ω
to 3000
Ω
120 VAC motor running
Oven Temperature
Sensor
Front
P3-1 to P3-2
1075
Ω
at 68°F
(20°C) DLB
Meat Probe
Side
P3-3 to P3-4
9876
Ω
to 10075
Ω
Blower Motor -
High Speed
Rear
P5-5 to N (P7-1)
15
Ω
to 23
Ω
120 VAC motor running
Blower Motor -
Low Speed
Rear
P5-4 to N (J8-2)
15
Ω
to 23
Ω
120 VAC motor running
Thermal Limiter
Rear
PX3-1 to L2 (Main line) Closed circuit
0V closed, N/A open
Thermal Fuse (only
for single/double)
Front
J8-1 to L1 (P5-7)
Closed circuit
0V closed, N/A open
Convection Fan*
Rear
P5-3 to N (J8-2)
20
Ω
to 28
Ω
120 VAC motor running
Convection
Element*
Front
PX1-3 to PX3-2
16.63
Ω
to 18.38
Ω
240 VAC Convection cycle
operating
Bake Element
Rear
PX1-1 to PX3-2
19.0
Ω
to 21.6
Ω
240 VAC Bake cycle operating
Broil Element
Front
PX4-2 to PX3-2
13.5
Ω
to 14.92
Ω
240 VAC Broil cycle operating
User Interface
Board
Front
P1-4 to P1-3
N/A
14 VDC
Copernicus
Appliance
Manager
Top (single/double)
Side (combo)
P1-2 to P1-5
N/A
14 VDC
Relay Logic Chart
The chart below provides information about how the relays react in any cooking mode. The Legend at
the bottom of the chart shows what each symbol means. During each of the convection modes the
convection fan and convection element cycle on and off to maintain proper heat - no big surprise
there. The normal BAKE mode also uses the convection fan and element to get heat build up faster in
PREHEAT and help maintain temperatures during the cycle. The convection fan can be seen working
during the cooking mode and raises questions by consumers. The chart confirms that the convection
fan and element do cycle during the normal cycles too. Remember that the fan will cycle OFF
whenever the oven door is opened. This chart is available in the Tech Sheet that is provided with every
oven Kitchen Aid produces.
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Failure/Error Codes
