Amana LD510D Service Manual download pdf (Page 12)

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 Check Result Cause Remedy

No input can be

programmed.

Check the connection

between keypad and

controller.

•

Continuity

•

Failed

controller.

•

Replace

controller.

•

No continuity

•

Loose

connection.

•

Repair

connection.

1. Some inputs

cannot be

programmed.

Replace keypad and check

operation.

•

Everything

works as

specified.

•

Failed

keypad.

•

Replace

keypad.

2. Display shows

a number or

figure different

from one

touched.

•

Still have

trouble.

•

Failed

controller.

•

Replace

controller.

3. Random

programming

when touching

other pads.

4. Display is fixed

at some figure

and can not

accept any

input.

Troubleshooting Procedures

1 ... 11 12 13 ... 26

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Amana LD510D Service Manual Page 12

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