Onan generator · 1 model line

Onan generator code GEN WAIT: The generator is delaying the next start attempt for starter cooling or cold-weather preheat

Onan documentation lists GEN WAIT as “The generator is delaying the next start attempt for starter cooling or cold-weather preheat”.

What code GEN WAIT means by model

Model lineWhat the manufacturer saysSource
Quiet Diesel 3200 (HDZAA Spec A-F)The Cummins Onan Quiet Diesel 3200 operator manuals list GEN WAIT as the generator is delaying the next start attempt for starter cooling or cold-weather preheat.Cummins Onan RV Generator Manuals
Cummins Onan Quiet Diesel 3200 HDZAA Spec A-E Operator Manual 0983-0103
Cummins Onan Quiet Diesel 3200 HDZAA Spec F Operator Manual A066T111

What you can safely check

  • Wait for the message to clear before another start attempt.
  • Avoid repeated start attempts while the starter cools.

Stop and call a technician for

  • Electrical output, inverter, controller, stator, rotor, fuel injection, sensors, wiring, coolant-system service, fuel leaks, and generator compartment repairs belong to Cummins service or a qualified generator technician.

Generators can produce carbon monoxide, hot surfaces, fuel hazards, moving-part hazards, and lethal voltage. Shut the generator down and do not open energized compartments unless qualified.

Write this down before you call

  • generator model/spec
  • operator panel message
  • hour meter
  • loads running when the message appeared

Other codes on Cummins Onan Quiet Diesel 3200 generators

Full table: Cummins Onan Quiet Diesel 3200 generators

  • GEN CAL The generator is in calibration mode during startup and is not yet ready to produce AC ou…
  • GEN OFF The generator set is off but ready to start
  • GEN ON The generator set is running
  • GEN START The start button was pressed but the engine may not be cranking
  • GENERATOR ALERT Operator-panel communication, PMA auxiliary power, engine speed, or inverter faults may h…
  • LOW BATTERY Battery voltage is below the minimum value needed to start the generator
  • LOW ENGINE POWER Engine speed is below the specified threshold
  • OIL CHANGE/CHECK OIL LEVEL The hour counter reached the oil check or oil change maintenance interval
  • OIL TEMP-PRESS Engine lubricating oil temperature is too high or oil pressure is too low
  • OVER TEMPERATURE (INVERTER) The inverter temperature exceeded its limit
  • OVERLOAD Too many loads are connected or the inverter is defective
  • RESTART GEN? The generator set stopped and the operator panel is prompting for a restart decision
  • SHORT CIRCUIT A connected appliance probably has a short circuit and AC output was turned off while the…

Related troubleshooting guides

Official sources