- 17 -
Oven does not operate.
Inspection method
Is Fuse OK?
Is Primary
interlock switch
normal?
Make sure to inspect the power
relay after replacing primary
interlock switch, secondary interlock
switch and door sensing switch.
Primary interlock switch
Secondary interlock switch
Door sensing switch
Latch switch assembly
Replace Relay
Check a fan motor after replacing switch
Is Power Relay
normal?
Replace switch
Replace L.V.T.
Replace PCB.
Is high voltage
diode normal?
Is the magnetron
temperature switch
normal?
Is L.V.T normal?
Check PCB after replacing L.V.T.
Checking high voltage
circuits
Is high voltage
capacitor normal?
Is magnetron
norma?
In case any of high voltage parts is
damaged, check all parts related to
high votlage.
Is the IC01
output of PCB
normal?
Power Point Check Point
Caution
1.Be careful of high voltage circuits.
2. Discharge high voltage capacitor. .
6-1 Electrical Malfunction(continued)