Amana 1800 W - 2005 Manual page 12

Troubleshooting Procedures
Trouble 1: The following visual conditions indicate a probable failed control circuit.
1. Incomplete segments.
• Segment missing.
• Partial segment missing.
• Digit flickering (Note: Slight flickering is normal.)
2. Colon does not turn on or blink.
3. A distinct change in the brightness of one or more numbers in display.
4. One or more digits in the display are not lighting.
5. Display indicates a number different from one touched, for example, key in 5 and 3 appears in the display.
6. Specific numbers (for example 7 or 9) will not display when key pad is touched.
7. Display does not count down with time blinking or up with clock operation.
8. Display obviously jumps in time while counting down.
9. Display counts down too fast while cooking.
10.Each indicator light does not turn on after setting cooking cycle.
11. Display time of day does not reappear when cooking is finished.
Condition
No input can be
programmed.
1. Some inputs
cannot be
programmed.
2. Display shows
a number or
figure different
from one
touched.
3. Random
programming
when touching
other pads.
4. Display is fixed
at some figure
and can not
accept any
input.
12
Check
Check the connection
between keypad and
controller.
Replace keypad and check
operation.
16026795
Result Cause
Continuity Failed
controller.
No continuity Loose
connection.
Everything Failed
works as keypad.
specified.
Still have Failed
trouble. controller.
Remedy
Replace
controller.
Repair
connection.
Replace
keypad.
Replace
controller.
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