Deutz D2011L04o Engine

How to read your Deutz engine serial & model number →

• Unstable voltage (either on no-load or with load)
  Fix: 1. Check speed stability 2. Check stability setting
• Sender always displayed its lowest or highest value
  Cause: The sender could either be open (not connected) or shorted to ground.
  Fix: Verify your connections and ensure the correct sender table is loaded.
• No voltage build-up when starting set
  Fix: 1. Check speed 2. Check residual voltage. 3. Follow separate excitation test procedure to check generator
• Low voltage (on-load)
  Fix: 1. Check speed. 2. Check UFRO setting. 3. Follow separate excitation procedure to check generator and AVR.
• Low voltage (no-load)
  Fix: 1. Check speed. 2. Check link 1-2 or external hand trimmer leads for continuity.
• High voltage (either on no-load or with load)
  Fix: 1. Check speed. 2. Check that generator load is not capacitive (leading power factor).
• Engine starts but the crank output does not turn off
  Cause: The controller is not receiving a speed signal.
  Fix: 1. Verify the Sensors -> Engine Speed -> Signal Source setting is set correctly. 2. Verify the Timers -> Engine Logic -> RPM Disconnect setting is set correctly. 3. Ensure the correct wiring to the controller. For magnetic pickup, Speed Sensing A and B terminals are used. For generator voltage, the AC voltage connections are used.

Compiled from service & troubleshooting documentation across every generator set that uses the Deutz D2011L04o.