(TROUBLE 4) The following visual conditions inditions indicate a probable defective touch control circuit or membrane switch assembly
1.Incomplete segments,
1)Segments missing.
2)Partical segments missing.
3)Digit flickering other than normal display slight flickering.
4)" :0" does not display when power is on.
2.A distinct change in the display are not on when they numbers is the display.
3.One or more digits in the display are not on when they should be.
M/W | DEF TIMER LOCK | lb |
4.Display indicates a number different from one touched.
5.Specific numbers (for example 2 or 3) will not display when the panel is touched.
6.Display does not count down or up with time cooking or clock operation.
7.Oven is programmable and cooks normally but no display shows.
8.Display obviously jumps in time while counting down.
9.Display counts down noticeable too fast while cooking.
10.Display does not show the time of day when the clear pad is touched.
11.Oven lamp and turntable motor do not stop although cooking is finished. Check if the RELAY 2 contacts close if they are close, replace touch control circuit.
CONDITION
Display does
not show
programming at all, even if keyboard is touched.
CHECK
Check rach pad for continuity of the membrane keyboard for the following keyboard check procedure
RESULT
Normal
Abnormal
CAUSE |
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| Replace |
Malfunction |
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| control box | |
of touch |
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control circuit |
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of control box |
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Malfunction |
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| Replace the |
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of the membrane |
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| membrane |
keyboard |
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| keyboard |
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NOTE
Before following the particular steps listed above in the trouble shooting guide for the membrane keyboard’s, failure, please check for the continuity of each
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