TurboChef sota Service Manual page 90

60 TROUBLESHOOTING
Are the switches opening in the
correct sequence (P, S, M) while
the oven is hot? (Ensure the oven
has been at operating tempera-
ture for at least fifteen minutes.)
To access Test Mode or for info
on status indicators, see page 14
or page 29 for Touch.
YES
Are the switches
closing in the
correct sequence
(M, S, P)?
Verify wiring and check K2
fan relay operation (B-17
and C-16). If necessary,
replace the cooling fans.
Verify wiring to magnetrons,
and verify magnetron ther-
mostats 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 monitor safety switch. See page 45 for instruc-
NO
tions. 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.
NO
Are the
switches bent
YES
or damaged?
F5: MAG TEMP (Magnetron Over Temperature)
Open the top cover, place the oven in
NO
Test Mode, and test the magnetrons
(see page 14, 29 for Touch). Are the
magnetron cooling fans operating?
Do the magnetrons pass testing in
NO
the Test Mode? See page 14, 29 for
Touch.
Fault message
should disappear.
Replace the magnetron(s) and test again
YES
in Test Mode. Do the magnetrons pass
testing?
Troubleshooting:
YES
NO
(Non-Touch)
NO
(Touch)
Troubleshooting:
YES
YES
Replace the F3 fuse.
Replace all
switches.
From the cooling down
or off screen, press and
hold the Info key for
5 seconds to reset the
Run test cook
oven. Doing so should
cycles to verify
clear the fault message.
proper operation.
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
Replace the I/O Control
NO
Board (SAGE).
YES