Switching from Electric to Diesel

Important Applies to units with the Electric Standby Option only. The operation of this feature can be changed using the Guarded Access Menu. Refer to Guarded Access / Unit Configuration Menu / Electric to Diesel Auto Switch Enabled feature in Section 3.

Electric to Diesel Auto Switch Enabled feature set YES

If this feature is set YES, the unit will switch automatically from Electric Mode to Diesel Mode when standby power is removed or fails.

Electric to Diesel Auto Switch Enabled feature set NO (Default)

If the unit is operating in Electric Mode and standby power is disconnected or fails, the unit will not automatically switch to Diesel mode. This is primarily designed to prevent unauthorized diesel engine starts when the truck is indoors or on a ferry where engine operation is strictly prohibited.

If the unit is operating in Electric Mode and standby power is disconnected or fails, Alarm Code 91 Check Electric Ready Input will be set. The red LED between the ON key and OFF Key will glow, the Alarm Icon will glow, and the box temperature and setpoint displays will disappear as shown ( Alarm Icon).

Alarm Icon

    Important

  1. If the unit is running in Electric Mode and electric standby power is lost and then restored, Alarm Code 91 Check Electric Ready Input will be automatically cleared and the unit will restart in Electric Mode.

  2. When the display shown ( Alarm Icon) is present, do not press the Truck Standard Display HMI Control Panel OFF Key to turn the unit off. Press the HMI Control Panel ON Key twice to clear Alarm Code 91 Check Electric Ready Input and turn the unit back on in Diesel Mode.

Preferred Method for Manually Switching from Electric Mode to Diesel Mode

  1. Press the HMI Control Panel OFF Key to turn the unit off.

  2. Turn off the standby power and disconnect the cord.

  3. Press the HMI Control Panel ON Key to turn the unit on. The Hourmeters display will briefly appear and then the screen will appear as shown.

    Display

  4. Press the HMI Control Panel ON Key again to clear Alarm Code 91 Check Electric Ready Input and turn the unit back on in Diesel Mode.

Important When the display shown ( Display) is present, do not press the HMI Control Panel OFF Key to turn the unit off. Press the HMI Control Panel ON Key twice to clear Alarm Code 91 Check Electric Ready Input and turn the unit back on in Diesel Mode.

If the HMI Control Panel OFF Key is pressed when the display shown ( Display) is present, the unit will turn off and the display will be blank. To restart the unit in Diesel Mode, proceed as follows:

  • Press the HMI Control Panel ON Key. The Hourmeters display and a blinking Alarm Icon will appear.

  • When the Hourmeters display and a blinking Alarm Icon is shown, press the HMI Control Panel ON Key again. The display will go blank but the blinking Alarm Icon will remain on and blinking.

  • When the display goes blank and the blinking Alarm Icon is shown, press the HMI Control Panel ON Key again. The box temperature and setpoint will appear, the blinking Alarm Icon will disappear and the unit will start in Diesel Mode.

Parent topic: Truck Standard Display HMI Control Panel