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Home›Repair guides›6. Use the PC Service tool or the Test sub-menu

Cummins/Onan OTPCA — 6. Use the PC Service tool or the Test sub-menu

For the Cummins/Onan OTPCA.

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Procedure

  1. 9. Set the time delay engine start (TDESa) to zero on the lead transfer switch.
  2. 10. Set the time delay engine stop (TDECa) to zero on the lead transfer switch.
  3. 11. If desired, use the PC Service tool to enable the alternating preferred source.
  4. 12. Place the motor disconnect switch in the Auto position on both transfer switches. Testing the System by Removing Utility Power and Turning Off the Preferred Genset:

Source: manual:962-0516A Onan OTPC (40-1000 Amp) Transfer Switch Service manual (10-2002).pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.