Daewoo KOR-861H0P, Руководство по обслуживанию

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TROUBLE SHOOTING GUIDE
Following the procedure below to check if the oven is defective or not.
1) Check earthing before trouble checking.
2) Be careful of the high voltage circuit.
3) Discharge the high voltage capacitor.
4) W hen checking the continuity of the switches, fuse or high voltage transform er, disconnect one lead wire from these parts
and check continuity with the AC plug removed. To do otherwise m ay result in a false reading or dam age to your meter.
(TROUBLE 1) Oven does not operate at all : any inputs can not be accepted.
NOTE
W hen electric parts are checked, be sure the pow er cord is not inserted the w all outlet.
C heck w ire harness, w iring and connected of the term inals and power cord before check the parts listed below.
CHECK RESULT CAUSE REM EDY
Fuse blow s.
C ontinuity
N o C ontinuity
C ontinuity
0 infinite
Ω
or
A pprox.
150~310
(norm al)
R eplace
N O TE 1
R eplace
N O TE 1
R eplace
R eplace
C heck co ntinuity of
prim ary w inding of low
voltage transform er
M alfunction
of interlock
m on itor
sw itch
D efective low
voltage
transform er
C heck co ntinuity of
interlock m onitor sw itch
w ith door closed
(C O M
N C)
C heck co ntinuity of prim ary
interlock sw itch contact
w ith door partially open
until interlock m onitor switch
contact close
(C O M <->N O )
S horted contacts
of prim a ry
interlock sw itch.
Fuse again
blows
D isconne ct high voltage
fuse and operate the unit
D efective high
voltage transform er
C O N D ITIO N
N o C ontinuity
R eplace
N O TE 1
C heck co ntinuity of both
prim ary and secondary
interlock sw itch w ith door
colosed
M alfunction of
interlock sw itch
N o C ontinuity
C ontinuity
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