SANDENVENDO AMERICA INC
1189085b ECN 52161
6
Converting Temperature from °F to °C (or °C to °F)
1. Controller must be off.
2. While holding down the TIME button, press the On/Off button. Software revision will be
displayed.
3. Press and release the TIME button.
4. Wait 5 seconds.
5. Press any timer key once to change from °F to °C (or °C to °F).
6. Press the On/Off button to turn the unit on.
7. Verify the display indicates the desired temperature units (°F or °C).
Heater Temperature Adjustment
With controller power off, hold down the Time button, then press & release the Power button.
The left timer button for a shelf decreases the temperature setpoint.
The right timer button for a shelf increases the temperature setpoint.
To exit heater temperature adjustment mode, press the power button.
Buttons labeled as timers allow a temperature to be set, but have no effect on Mini HFD
temperatures.
Error Codes
E30
Inside ambient thermistor error (open circuit)
E67
Lower left shelf thermistor error (open circuit)
E60
Upper shelf thermistor error (open circuit)
E63
Middle shelf thermistor error (open circuit)
E66
Lower right shelf thermistor error (open circuit)
E90
Unable to read SD card
Clear error codes by pressing any key (except for E90 error).
Clearing an error code turns that shelf's heater off.
Clear the E90 error by pressing the power button, then press again to turn HFD on again.
Loading the
SD Card Program in the HFD controller
With the HFD on:
1. Insert the SD card in the controller’s SD card slot until it clicks in place
2. The HFD display with show dashes while the program is loading
3. Loading will take up to 30 seconds
4. Once loaded, the display will revert to internal ambient temperature
5. Press (don’t pull) the card to remove it from the slot
SD Card Programming
The SD card must be formatted in FAT32, preferably by Windows XP instead of Vista. It must
contain a single file, and the file name does not matter. 512MB or 1GB cards only. The
contents must be ASCII text as follows, in exactly the format shown:
