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Home›Repair guides›Before calling for service, have the following information available:

Cummins/Onan — Before calling for service, have the following information available:

For these Cummins/Onan models: EGMBT (P4500), EGMBT/P4500, EGMBU (P5000e), EGMBU/P5000e.

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Procedure

  1. 1. The complete generator set model number and series number. Refer to the Model Identifcation section of this manual.
  2. 2. The date of purchase.
  3. 3. The nature of the problem. Refer to the Troubleshooting section of this manual.

Source: manual:914-0116 Cummins EGMBT&U Operators Manual (8-2009) .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.