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Component Testing Procedures
To avoid risk of electrical shock, personal injury or death, disconnect power to oven and discharge capacitor
before servicing, unless testing requires power.
Illustration
Auto Transformer
COM
208
120
230
Transformer
5
6
8
# 1
# 3
4
# 2
1
# 5
# 6
# 7
# 8
2
7
3
Terminal 1
Common
−
Terminal 2
208 V
−
Terminal 3
230 V
−
Interlock switch
assembly
Primary /
Logic
Mo nitor
Secondary
Touch Panel
Assembly
Wire Harness
January 2009
©2009 ACP Inc.
!
Component
Discharge Capacitors
230
Remove all wires from terminals.
208
Measure resistance from:
230 to 0 ...........................................................
120
208 to 0 ...........................................................
120 to 0 ...........................................................
0
Discharge Capacitors
Remove all wires from terminals.
-300 MA
# 4
1.0 F
Measure resistance from:
Terminal 1 to 2 ................................................
-300 MA
1.0 F
Terminal 1 to 3 ................................................
Terminal 5 to 6 ................................................
Terminal 7 to 8 ................................................
Terminal 4 to Ground screw on transformer ....
Terminal 4 to any other terminal ......................
Disconnect wires to switch.
With door open measure resistance from:
Terminal C to NC
Terminal C to NO
Terminal C to NO
With door closed measure resistance from:
Terminal C to NC
Terminal C to NO
Terminal C to NO
Primary / Logic C
Monitor
Secondary
Continuity is indicated as 100
Pin 1: Ground.
Test continuity of wires.................................... Continuity.
WARNING
Test
Violet
2
1
3
Gray
Red
Monitor ..........................
Primary / Logic ..............
Secondary .....................
Monitor ..........................
Primary / Logic ..............
Secondary .....................
Door Closed
NO
C
NC
C
NO
and below.
3
Results
42.4
.
38.6
.
21.5
.
Less than 1
Less than 1
.
Less than 1
.
Less than 1
.
30
.
Infinite resistance. If not, replace
transformer.
Continuity.
Infinite.
Infinite.
Infinite.
Continuity.
Continuity.
Pad
Pins
Measurement
1
8 & 10
Continuity
2
7 & 10
Continuity
3
6 & 10
Continuity
4
5 & 10
Continuity
5
4 & 10
Continuity
6
3 & 10
Continuity
7
8 & 9
Continuity
8
7 & 9
Continuity
9
6 & 9
Continuity
0
5 & 9
Continuity
Start
4 & 9
Continuity
Stop/Reset
4 & 8
Continuity
Power Level
5 & 8
Continuity
X 2
6 & 8
Continuity
Time Entry
7 & 8
Continuity
Replaces 16027357
16500008
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