Daewoo KOR-164H0A, Руководство по обслуживанию

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17
TROUBLE SHOOTING GUIDE
Following the procedure below to check if the oven is defective or not.
1) Check grounding before trouble checking.
2) Be careful of the high voltage circuit.
3) Discharge the high voltage capacitor.
4) When checking the continuity of the switches, fuse or high voltage transformer, disconnect one lead wire from these
parts and check continuity with the AC plug removed. To do otherwise may result in a false reading or damage to
your meter.
(TROUBLE 1) Oven does not operate at all : any inputs can not be accepted.
NOTE : When electric parts are checked, be sure the power cord is not inserted the wall outlet.
Check wire harness, wiring and connected of the terminals and power cord before check the parts listed below.
CHECK RESULT CAUSE REM EDY
F use blow s.
C ontinuity
N o C ontinuity
C ontinuity
0 i nfinite or
A pprox.
150~310
(norm al)
R eplace
N O T E 1
R eplace
N O T E 1
R eplace
R eplace
C heck continuity of
prim ary w inding of low
voltage transform er
M alfunction
of interlock
m onitor
sw itch
D efective low
voltage
transform er
C heck continuity of
interlock m onitor sw itch
w ith door closed
R eplace fuse
C heck continuity of prim ary
interlock sw itch contact
w ith door partially open
until interlock m onitor s witch
contact close
S horted contacts
of prim ary
interlock sw itch.
F use aga in
blows
D isconnec t one side of the
lead w ire connected form
high voltage transformer
to the high voltage capacitor
and operate the unit
D Normal efective high
voltage capacitor
D efective high
voltage transform er
R eplace
C O N D IT IO N