Amana LD510D Service page 18

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 it.
Illustration
Timer 7 minute
2
4 3 1
Control
1
CN3
CN1
12
1
8
Fuse block /
Fuse Filter board
L
L
N
N
Touch panel
LD510P
1000 WATT
10 PROGRAM PADS
3 COOKING STAGES
18
!
Component
Disconnect wire from terminals.
Measure resistance of the following
terminals:
Terminal 3 to terminal 4 (timer motor)......
Terminal 1 to terminal 2(timer switch) ......
CN1
Pin 1 (black) to Pin 3 (white) .......................
RY2 (Cook Relay)
Unplug oven and remove wire leads from
RY2 terminals. Connect ohm-meter leads
to terminals.
Plug oven into power supply ......................
Initiate cook cycle ......................................
NOTE: RY2 should cycle when using
RY3 (Fan Relay)
Unplug oven and remove wire leads from
RY3 terminals. Connect ohm-meter leads
to terminals.
Plug oven into power supply ......................
Initiate cook cycle ......................................
NOTE: Fan relay remains energized for 60
Disconnect wire from terminals.
Measure resistance of the following
terminals:
Verify fuse is good .....................................
Terminal L to L...........................................
Terminal N to N .........................................
Continuity is indicated as 100 Ω and below.
DEL10E Each pad must be pressed to perform the
1000 WATT
following test.
10 PROGRAM PADS
0%
20%
50%
70%
QTY
2X
3 COOKING STAGES
16022150 Rev. 0
WARNING
Test
reduced power levels.
seconds following cook cycle.
1
2
3
4
5
6
7
8
9
10
11
Results
Approximately 22 KΩ
Timer OFF infinite Ω
Timer ON < 1 Ω
Line voltage input to control
transformer.
Infinite Ω
< 1 Ω
Power levels for Relay 2
Power Cycles Cycles
Level On for: Off for:
20% 6 sec 16 sec
40% 10 sec 12 sec
60% 14 sec 8 sec
80% 18 sec 4 sec
100% 22 sec 0 sec
Infinite Ω
< 1 Ω
< 1 Ω
< 1 Ω
< 1 Ω
Pad Trace Measurement
1 2 & 8 Continuity
2 3 & 8 Continuity
3 4 & 8 Continuity
4 5 & 8 Continuity
5 6 & 8 Continuity
6 7 & 8 Continuity
7 1 & 9 Continuity
8 2 & 9 Continuity
9 3 & 9 Continuity
0 1 & 8 Continuity
Hold 1 & 10 Continuity
Defrost 2 & 10 Continuity
Medium 3 & 10 Continuity
MED-HI 4 & 10 Continuity
Time Entry 5 & 10 Continuity
Stop/Reset 6 & 10 Continuity
Start 7 & 10 Continuity
X2 7 & 9 Continuity
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