Daewoo KOG-366T0S, Service Manual, Page: 38 / 56

37
Check Result
Cause Remedy
Check each
button for
continuity the tach
switch deyboard
as the following
keyboard check
procedure.
Condition
Display does
not show
program ming
at all, even if
button key is
pressed
Normal Malfunction of
touch control
circuity of
control box
main-assembly Replace control
box main
assembly
Normal Malfunction of
touch control
circuitry of
control box
sub-assembly Replace
control box sub-
assembly
NOTE 1 :
Before following the particular steps listed above in the trouble shooting guide for failure, please
check for the continuity of each wire-harness between the tact switch keyboard and PCB
assembly.
(TROUBLE5) Heater does not heat(Food will not become hot).
Check Result
Cause Remedy
Adjust or
replace
Check continuity
both primary
interlock switch
Condition
Grill heater
does not heat
No
Continuity
Malfunction of
primary
interlock switch
Replace the
heater
thermostat
Check continuity
of heater
thermostat No
Continuity
Defective
heater
thermostat
Adjust or
replace
Check continuity
of secondary
interlock switch No
Continuity
Malfunction of
secondary
interlock switch
Replace
Check continuity
of heater No
Continuity
Defective
heater
Replace
Check D.C.
voltage being
supplied to
RELAY (RY3) coil. OV
Defective touch
control circuit
Replace
Approx
-24V DC
Faulty contacts
of RELAY(RY3)
or open relay
coil.