Service Menu
Access diagnostics, alarms, data, and DPF regen features
The Service menu contains information, reminders, and self-tests that help ensure reliable operation and maintenance of the Aspen APU. Features include: • Unit Information — Serial number and software information • Maintenance — Displays hours until next PM is required • Alarms — View active alarms • Data — Temperature and voltage information • DPF Regen — Initiate manual DPF regeneration (Aspen SKY only) • Pretrip — System self-diagnostic test
Accessing the Service Menu
From the home screen, press the menu button.
Rotate the dial until Service is highlighted. Press the dial to select Service.
Unit Information
The Unit Information sub-menu displays the APU serial number and current software version.
From the home screen, press the menu button.
Rotate the dial and select Service. Press the dial.
Rotate the dial to select Unit Information. Press the dial. The serial number and software version will be displayed.
Press Menu to return to the home screen.
Viewing Alarms
From the home screen, press the menu button.
Rotate the dial and select Service. Press the dial.
Rotate the dial to select Alarms. Press the dial.
The active alarms will be displayed, up to a maximum of six. Rotate the dial to the right to scroll through the alarm list.
If additional alarms are present, continue rotating the dial to the right. Once the end of the list is reached, rotate the dial to the left to scroll back to the top.
Clearing Alarms
From the Alarm menu, rotate the dial to select the alarm code to clear.
Rotate the dial to "RESET" at the end of the alarm list.
Press the dial to clear the alarms.
Viewing Data
From the home screen, press the menu button.
Rotate the dial and select Service. Press the dial.
Rotate the dial to select Data. Press the dial. Temperature and voltage information will be displayed.
DPF Regeneration
For units equipped with the ClearSky emission control system, the DPF Regen menu allows you to monitor the status of a current regeneration or initiate a manual regeneration.
From the home screen, press the menu button.
Rotate the dial and select Service. Press the dial.
Rotate the dial to select DPF REGEN. Press the dial.
Rotate the dial to select Y to start manual regeneration. The DPF REGEN icon will be displayed while the regeneration is in progress.
HVAC and outlet functions are disabled during DPF regeneration. Do not attempt to use heating, air conditioning, or outlet features until the regeneration is complete.