Despatch LCC/LCD2-14-4 Oven Series with Protocol 3 - Manual (Page 50)

T ROUBLESHOOTING LCC/LCD2-14 Series Oven Owner’s Manual
50 Version 1
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7.
Troubleshooting: Error Messages and Alarm
Table 5 lists the more common error messages, possible problems and remedies.
Table 5. Error Messages and Next Steps.
Alarm Status Possible Problem Next Step
HI LIMIT LED ON 
Problem with thermocouple

High Limit setpoint has been
exceeded
Once the problem has corrected,
press RESET.
DEV HOLD LED flashing Oven temperature has not
entered (or dropped out of) the
Auto Hold band and the soak
timer has stopped Program a slower ramp rate or, if
oven is not heating check heater
circuit.
Top PV displays OPEN Control thermocouple is
disconnected or broken Repair or replace the thermocouple.
HLPV displays OPEN High Limit thermocouple is
disconnected or broken Repair or replace the thermocouple.