Cummins/Onan — Setting Quiet Time (QT) Start & End
Adjustments · EC-30 display
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan HDKA, Cummins/Onan HDKB, Cummins/Onan HDKC
Before you start
- QUIET ON mode prohibits the genset from automatically starting between the start and end of Quiet Time.
Procedure
- Use the UP/DOWN key to navigate to the QT START or QT END display; the current setting is shown.
- Press SET to change the setting.
- Use the UP/DOWN key to change the value.
- Press ENTER to store the new time.
Full service-parts list: Cummins/Onan HDKA →, Cummins/Onan HDKB →, Cummins/Onan HDKC →
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.