36 TR
OUBLESHOO
TING
Troubleshooting:
F4: MONITOR (Door Monitor Defective)
NO
YES
I
s the F3 fuse blo
wn?
YES
R
eplace the F3 fuse.
NO
Ar
e the switches opening in the
correct sequence (P, S, M) while
the oven is hot? (Ensure the
oven has been at operating
temperature for at least fifteen
minutes.)
To access Test Mode
or for info on status indicators,
see page 13.
A
djust the monitor safety switch.
See page 21 for instructions. From
the cooling down or off screen, press
and hold the Info key for 5 seconds
to reset the oven. Doing so should
clear the fault message.
Troubleshooting:
F5: MAG TEMP (Magnetron Over Temperature)
NO
YES
F
ault message
should disappear
.
NO
R
eplace the contr
ol board.
Verify wiring and check K2
fan relay operation (B-17
and C-16). If necessary,
r
eplace the cooling fans.
O
pen the top co
ver, place the oven in
Test Mode, and test the magnetrons
(see page 13). Are the magnetron
cooling fans operating?
Corr
ect wiring/
r
eplace the
thermostats.
NO
YES
Ar
e the switches
closing in the
correct sequence
(M, S, P)?
R
emove the debris
or r
eposition the
o
ven away from
obstruction.
YES
NO
NO
YES
D
o the magnetr
ons pass testing in the
Test Mode? See page 13.
NO
I
s the airpath into the electri-
cal compartment blocked or
clogged with debris? Check
the cooling fan finger guards
and filter on the back panel.
YES
V
erify wiring to magnetr
ons,
and verify magnetron ther-
mostats are not open. Are
wiring and thermostats ok?
Replace the magnetron(s) and test again
in Test Mode. Do the magnetrons pass
testing?
YES
Replace damaged
switch(es).
F
rom the cooling down or off
screen, press and hold the Info key
for 5 seconds to reset the oven.
Doing so should clear the fault
message.
Ar
e the
switches bent
or damaged?
YES
NO
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