Daewoo KOC-154K Service Manual download pdf (Page 21)

CONDITION CHECK

Check continuity of

magnetron

Defective

magnetron.

RESULT

continuity

CAUSE REMEDY

Replace

Outlet has

proper

voltage

fuse does not

blow?

Check continuity of noise filter

board

Defective line

filter board

continuity

Replace

Check continuity of

power supply cord

Defective touch

control circuit

Replace

Open power

supply cord

continuity

Replace

NOTE : All these switches must be replaced at the same time, please refer to (7.Interlock mechanism and

adjust) for adjustment instructions

(TROUBLE 2)

Display shows all figures selected, but oven does not start cooking, even though desired program and time

are set and start button is tapped.

CONDITION CHECK

Check continuity of

primary interlock switch

Malfunction of

primary interlock

switch

RESULT

continuity

CAUSE REMEDY

Adjust or

replace

Turn table

motor and

oven lamp

not turn on

Check D.C voltage

being supplied to

RELAY(RY6) coil

Fault contacts

of RELAY

(RY6) or open

relay coil.

Replace

Check continuity of

secondary interlock

and D.O.M switch

Malfunction of

secondary

Interlock and

D.O.M switch

continuity

Adjust or

replace

Defective touch

control Circuit

Approx.

24V DC

Replace

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Daewoo KOC-154K Service Manual Page 21

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