Sanyo EM-C1800MK, Service Manual

Page: 9 / 24

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Power is applied with
normal voltage
Timer is set
Touch Select key No display
cooking time Power circuit board
(See page 6) Voltage
incorrect
Replace
Control circuit
board
(See page 6)
Voltage
incorrect
Replace
Primary
Interlock switch
(See page 7)
No continuity Replace
Thermal protector No continuity Replace
Cooking opera-
tion will not start
Door sensing
switch
(See page 7)
No continuity Replace
Control circuit
board
(See page 6)
Voltage
incorrect
Replace
Control
circuit board
(See page 6) Voltage
incorrect
Replace
H.V Transformer
(See page 4) Resistance
incorrect
Replace
H.V Capacitor
(See page 5) Resistance
incorrect
Replace
Magnetron
(See page 4) Resistance
incorrect
Replace
Monitor switch
(See page 7) Contact on
No continuity Replace or
Adjust
Blower motor Shorted Replace
Step-down
Transformer
Shorted Replace
Oven dose not
heat up
Fuse(10A) blows
off immediately
B. TROUBLESHOOTING
CONDITION TROUBLE CHECK RESULT REMEDY
Connection of
S110 to S107
Poor Contact Reconnect