38 TROUBLESHOOTING
Troubleshooting:
F2: LOW TMP (Cook Temperature Low)
YES
Replace the defective
heater.
Replace the solid state
relay.
NO
YES
YES
Correct wiring.
YES
NO
Reset (Figure 36, page 32)
and determine why it
tripped – excess grease
buildup, etc.
Is either of the heater ele-
ments defective? (heaters
should have a resistance of
14.4 Ohms)
Is the high-limit
thermostat tripped?
Is the solid state relay
defective?
Is wiring from the
solid state relay to the
I/O control board OK?
(See page 49 for
schematic)
Is the RTD
functioning properly?
(Figure 37, page 33)
NO
NO
YES
NO
NO
Replace the I/O
control board.
YES
Ensure wiring is
correct. If necessary,
replace RTD.
Is the customer over-
loading the cavity
with frozen product?
Enable the “F2 Alarm Off” mode (see
page 14). This will allow the oven to
continue to operate if the temperature
drops during an overload condition.
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