Daewoo KOC-9Q4T Manuel de service télécharger pdf (Page 10)

CONDITION CHECK

Check each button for

continuity of the button

Malfunction of

touch control

circuit of control

box sub-assembly

RESULT

Normal

CAUSE REMEDY

Replace

control box

sub-assembly

Display does

not show

programming

at all, even if

keyboard is

touched.

(TROUBLE 6)

The following visual conditions indicate a probable defective touch control Circuit or button P.C.B. assembly

1. Incomplete segments.

1) segment missing

2) partial segments missing

3) digit flickering other than normal fluorescent slight flickering

2. A distinct change in the brightness of one or more numbers exists in the

display.

3. One or more digits in the display are not on when they should be.

4. Display does not count down or up with time cooking or clock operation.

5. Oven is programmable and cooks normally but no display shows.

6. Display obviously jumps in time while counting down.

7. Display counts down noticeably too fast while cooking.

8. Display does not show the time of day when clear button is touched.

9. Oven lamp and turn table motor do not stop although cooking is finished.

Check if the RELAY(RY2) contacts close and if they are close, replace touch control circuit.

CAUSE

REMEDY

(TROUBLE 7)

When “ERROR 2 ERROR 3” come on display.

CONDITION CHECK

Check continuity of thermistor

(resistance of thermistor)

Replace

RESULT

0Ω or infinite

Replace

“ERROR 2 &

ERROR 3”

come on

display

Check continuity of heater

(main, sub)

Defective touch

control circuit

Replace

Approx

200k~300kΩ

(room

temperature)

Defective

heater

continuity

Replace

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 24 25

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Daewoo KOC-9Q4T Manuel de service Page 10

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