Onan generator · 1 model line

Onan generator code OVERLOAD: Too many loads are connected or the inverter is defective

Onan documentation lists OVERLOAD as “Too many loads are connected or the inverter is defective”.

What code OVERLOAD means by model

Model lineWhat the manufacturer saysSource
Quiet Diesel 3200 (HDZAA Spec A-F)The Cummins Onan Quiet Diesel 3200 operator manuals list OVERLOAD as too many loads are connected or the inverter is defective.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

  • Reduce connected loads.
  • Stop and restart only after the generator has cooled and loads are reduced.

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
  • GEN WAIT The generator is delaying the next start attempt for starter cooling or cold-weather preh…
  • 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
  • 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