TurboChef i3 Service Manual page 62

40 TROUBLESHOOTING
Are the switches open-
ing in the correct
sequence (P, S, M)? To
access
TEST MODE
info on status indicators,
see page 16.
YES
Are the switches
closing in the
correct sequence
(M, S, P)?
Verify wiring. If neces-
sary, replace the mag-
netron cooling fan.
Verify wiring to
magnetrons, and verify
magnetron thermostats are
not open. Are wiring and
thermostats ok?
NO
Correct wiring/
replace the
thermostats.
F4: MONITOR (Door Monitor Defective)
NO
Is the F3 fuse blown?
Adjust the door switches. See page 24
or for
for instructions. From the cooling
NO
down or off screen, press and hold the
Info key for 5 seconds to reset the
oven. The fault should clear.
Disconnect the oven
NO
from the power supply
and then reconnect.
YES
The fault should clear.
F5: MAG TEMP (Magnetron Over Temperature)
Open the top cover, place the oven in
NO
TEST MODE
(see page 16). Are the magnetron
cooling fans operating?
Do the magnetrons pass testing in the
NO
TEST MODE
Fault message
should disappear.
Replace the magnetron(s) and test again
YES
in . Do the magnetrons pass
TEST MODE
testing?
Troubleshooting:
Troubleshooting:
and test the magnetrons
? See page 16.
YES
YES
Replace the F3 fuse.
Is the airpath into the electri-
cal compartment blocked or
YES
clogged with debris? Check
the cooling fan finger guards
and filter on the back panel.
NO
Remove the debris
or reposition the
oven away from
obstruction.
YES
NO
Replace the control board.
YES