Fuse 1
Fuse 3
Fuse 2
Interlock Assembly
Magnetron
Cooling Motor/Lamp
Interlock Assembly
Convection Motor
Heater
Magnetron
Right Inverter
Left Inverter
15
TFT screen or
switch button
is not bright
The Interlock
assembly is bad
Check the signal wires
of TFT screen and
SRB(CN9) is loose
Replug
the terminal
Replace SRB
Replace
TFT screen
Replace Noise
Filter/EMI Filter
Check Noise Filter/
EMI Filter is normal
The inverter is bad
The Magnetron is bad
Cooling Motor/
Lamp is bad
Fuse 1
is normal
Replace switch
button
switch button
is bright
switch button is
not bright
Check or switch
button is normal
Fuse 1 is bad
Yes
Yes
Not
Not
Not
