Fault Code Troubleshooting - F8 Heat Low; Fault Code Troubleshooting - F9 Cook Cavity Temperature High - TurboChef ngo Service Manual

38 TROUBLESHOOTING
Is the high-limit
thermostat tripped?
YES
Reset (Figure 33, page
28) and determine
why it tripped – excess
grease buildup, etc.
Are both blower motors moving air?
YES
Check in Test Mode - see page 14.
Are either of the heaters defective?
NO
Check in Test Mode - see page 14.
Replace the defective
heater(s).
Verify the solid state
relay is not shorted
across output.
F9: CC TEMP (Cook Cavity Temperature High)
If this fault frequently occurs,
- Ensure the oven is cleaned daily (see pages 5-6).
- Determine if large amounts of grease-laden food are being cooked, and if
so, recommend smaller portions per cook cycle.
Troubleshooting:
F8: HEAT LOW
YES NO
Is the solid state relay
defective or damaged?
YES
Replace the
solid state
relay.
Troubleshooting:
NO
See page 33
to troubleshoot
F1: BLOWER
(Blower Running
Status Bad)
NO
Is the wiring from the solid
state relay to the control
board OK? (See page 45 for
schematic.)
NO
YES
Replace the
Correct wiring.
control board.