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Home›Repair guides›Oil Sensor Maintenance and Checking

Cummins/Onan — Oil Sensor Maintenance and Checking

A Cummins/Onan service procedure — check it applies to your exact model before use.

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Procedure

  1. The oil sensor detects the fall in oil level in the crankcase and automatically stops the engine when the oil level falls below a predetermined level.
  2. When engine has stopped automatically, switch off generator no-fuse breaker and check the oil level.
  3. Refill engine oil to the upper level as instructed and restart the engine.
  4. If the engine does not start by usual starting procedures, check the oil level.
  5. Do not remove OIL SENSOR PROBE when refilling with oil. Remove oil filler cap on the opposite side of carburetor.

Source: manual:914-0109 Onan EGMBM Operators Manual (4-2008) .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.