UHC-HD
3-4
4.9.1 High and Low-Temperature Alarms
If the slot temperature is above or below the limits for the product selected, the display will
show SLOT TEMP HIGH or SLOT TEMP LOW. An alarm will sound. Press a timer key to turn off
the audible alarm. The audible alarm does not sound during initial cabinet startup.
4.9.2 Sensor-Range Alarm
The sensor fail alarm indicates a sensor temperature value above or below the 90-250°F (32-
121°C) range of the slot. An audible alarm sounds. The displayed message is SENS ALRM.
Press a timer key to end the audible alarm. Service is required to correct the sensor alarm.
4.9.3 Rise-Time Alarm
A rise-time alarm indicates the slot temperature failed to reach operating temperature within
a preset time after start up. The displayed message is SLOT RISE RATE. An audible alarm
sounds. Press a timer key to turn off the audible alarm. Service is required to correct a rise-
time alarm.
4.9.4 Additional Out of Tolerance Displays
HHH in the display indicates a sensor error. Service is required.
LLLL indicates a sensor error or a slot below 50°F (10°C). Allow the slot to operate for 10
minutes. If LLLL remains, call for service.
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