Trouble Shooting Guide - Daewoo KOC-1C0K5SV1 Service Manual

13. TROUBLE SHOOTING GUIDE

Following the procedure below to check if the oven is defective or not.
1) Check grounding before checking trouble
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 tranformer, check continuity with the AC plug
removed. To do otherwise may result in a false reading or damage to your meter or harmful to your body
NOTE : When electric parts are checked, be sure the power cord is not inserted the wall outlet.
Check wire harness, wiring and connection of the terminals and power cord before check the parts
listed below.
TROUBLE 1) Despite plugging the cord into the outlet , but the display doesn't show.
1. Check points
CHECK
Check continuity of main fuse
replace the control panel and
check the power
Check continuity of power code,
noise filter
RESULT
Yes
No continuity
No
Yes
Display shows
No
Yes
Power code :
Check continuity
of N-N and L-L
terminals.
Noise filter :
Check continuity
of N-N and L-L
terminals.
28
CAUSE AND REMEDY
Replace main fuse
The problem was caused by
the control panel
Replace the components
which are no continuity