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D. Display Icons
Display icons inform you of energized components and if the unit is in alarm.
Display Icons
Icon
Meaning
Compressor
Steady: Compressor running.
Flashing:
•
Compressor delay timer. Compressor will start within 3 minutes.
•
In temperature setpoint adjustment mode. For temperature setpoint adjustment, see
"II.C.2 Adjusting the Temperature Setpoint."
Defrost
Unit is in defrost cycle. See "II.G. Defrost" for details.
Evaporator Fan
Evaporator fan is running. Evaporator fan is de-energized when door is open.
Alarm
Unit is in alarm. See "II.E. Alarm Safeties" for details.
E. Alarm Safeties
Alarm signals are designed to protect the unit and items inside. These alarms give
information or warnings in the event the unit is operating out of acceptable parameters.
Should one of the alarms occur, follow the instructions in the table below to address the
alarm. The alarm icon appears on the display and the alarm code alternates with the
cabinet temperature.
To obtain the name and phone number of your local Hoshizaki Certified Service
Representative, visit www.hoshizaki.com.
Alarm Signals
Alarm Code Problem
Corrective Action/Reset Details
AH
High Temperature Alarm
Cabinet temperature has exceeded the
setpoint temperature by 10°F for more
than 2 hours.
If obvious corrections such as closing the door and
cleaning the condenser do not bring temperature
back in range, call a qualified service technician.
Automatically resets when temperature returns to
normal.
AL
Low Temperature Alarm
Cabinet temperature has remained below
the setpoint temperature by 10°F for more
than 2 hours.
If obvious corrections do not bring the temperature
back in range, call a qualified service technician.
Automatically resets when temperature returns to
normal.
Ld
Door Open
Close the door.
Pr1
Cabinet Thermistor Malfunction Alarm
Cabinet thermistor has failed.
Call a qualified service technician.
Unit cycles 10 min. on, 10 min. off.
