E804-0000imageRUNNER ADVANCE C3330i

Canon Error E804-0000: Cooling Fan Fix

The E804-0000 error on the Canon imageRUNNER ADVANCE C3330i points to a failure in the DC power supply cooling fan. If the system sensor detects that the fan is not rotating or is spinning at the wrong speed, the machine shuts down to prevent overheating. To resolve this, ensure the vents are clear of dust and restart the machine.

1 views

Common causes

  • 1Physical obstruction due to dust or lint buildup in the fan area.
  • 2Natural bearing wear due to aging hardware.
  • 3Hall sensor failure monitoring fan RPM.
  • 4Short circuit in the 24V fan power line.

Solutions

Diagnóstico rápido

If you hear grinding noises or feel no airflow from the rear vents, the fan motor may be failing. Verify the unit has enough clearance from walls for efficient cooling.

Solución paso a paso

  1. External Cleaning: Use compressed air to carefully clean the rear and side ventilation grilles.
  2. Power Cycle: Turn off the printer and unplug it for 5 minutes to let the internal temperature sensors reset.
  3. Check Clearances: Ensure no cables or objects are blocking the rear air exhaust ports.
  4. Power Up: Turn the machine back on and observe if the self-diagnostic check passes.

Prevención y mantenimiento

Clean vents monthly in dusty environments. Keep the machine in a temperature-controlled room (20-25°C). Ensure proper airflow by maintaining a 15 cm clearance behind the unit.

Cuándo llamar a un técnico

If the fan remains stationary or the error persists, the fan motor is likely dead. A service technician must replace the cooling unit to prevent potential power supply motherboard damage.

Ficha técnica del equipo

  • Technology: Multifunction Color Laser
  • Thermal Management: Forced air fan systems
  • Power Consumption: Max. 1.5 kW
  • Compatible Consumables: GPR-53 Toner (C-EXV 49 Series)
  • Operating Environment: 10-30°C, 20-80% humidity
  • Support and drivers

Steps to follow

  1. 1

    Clean Vents

    Use an air duster to clear the intake/exhaust vents.

  2. 2

    Power Cycle

    Power off and unplug for 5 minutes.

  3. 3

    Check Airflow

    Confirm proper clearance before rebooting.

Frequently asked questions

Yes, it is critical. Continuing to run the machine with a failed cooling fan can lead to permanent damage to the power supply or mainboard.

Use genuine Canon GPR-53 toner. Compatible toners often leave excess residue that clogs fans faster.

You can clean external vents, but never open the printer casing to touch internal fans due to safety and electrical risks.

Maintain proper room ventilation and clean the unit's external grilles regularly to prevent dust accumulation.