Canon Projector Error Codes

Complete Canon Projector Guide

This guide explains all Canon Projector error codes (CH series) with simple troubleshooting steps to help you identify and fix common issues safely before calling a technician.

READY
Canon Projector System Ready
  • Projector is operating normally.
  • No action required.
  • Ready for display input.
  • Ensure input source is connected properly.
E001
Lamp Failure
  • Check lamp life timer status.
  • Reinstall or reseat projector lamp.
  • Inspect lamp cover safety switch.
  • Replace lamp if end-of-life.
E002
Overheating Detected
  • Turn off projector and allow cooling.
  • Clean air filters and vents.
  • Ensure proper ventilation space.
  • Check internal cooling fan operation.
E003
Fan Error
  • Inspect cooling fans for dust blockage.
  • Check fan motor operation.
  • Ensure stable power supply.
  • Replace fan if not spinning correctly.
E004
Power Supply Fault
  • Check AC power source stability.
  • Inspect internal power board.
  • Look for burnt components.
  • Replace power supply unit if needed.
E005
Color Wheel Error
  • Check color wheel motor operation.
  • Inspect for dust or obstruction.
  • Restart projector system.
  • Replace color wheel assembly if faulty.
E006
Thermal Sensor Fault
  • Inspect internal temperature sensor.
  • Check wiring connections.
  • Clean dust around sensor area.
  • Replace sensor if readings are abnormal.
E007
Lamp Ignition Failure
  • Check lamp connection seating.
  • Inspect ballast unit.
  • Allow projector to cool before retry.
  • Replace lamp or ballast if needed.
E008
Airflow Blocked
  • Clean air intake filters.
  • Remove dust from vents.
  • Ensure projector has space around it.
  • Check fan operation.
E009
Power On Failure
  • Check power cable connection.
  • Try a different power outlet.
  • Inspect internal fuse.
  • Replace power board if needed.
E010
Main Board Communication Error
  • Restart projector system.
  • Check internal ribbon cables.
  • Update firmware if available.
  • Replace main PCB if needed.
E011
HDMI Signal Failure
  • Check HDMI cable connection.
  • Try another input device.
  • Restart projector and source device.
  • Inspect HDMI port damage.
E012
Optical Engine Fault
  • Inspect lens assembly.
  • Check for dust inside optical block.
  • Restart projector system.
  • Service optical engine if needed.
E013
Internal Fan Speed Error
  • Check fan rotation speed.
  • Remove dust buildup.
  • Inspect fan wiring.
  • Replace cooling fan if faulty.
E014
Lamp Cover Open
  • Ensure lamp cover is fully closed.
  • Check safety switch alignment.
  • Secure lamp compartment properly.
  • Restart projector after closing.
E015
System Overload Protection
  • Turn off projector immediately.
  • Allow full cooling period.
  • Check ventilation system.
  • Inspect internal power circuit.
E016
Firmware Corruption
  • Reset projector settings.
  • Reinstall firmware update.
  • Use official Canon update tool.
  • Service main board if needed.
E017
Projection Image Failure
  • Check input source signal.
  • Restart projector and device.
  • Test different HDMI/VGA input.
  • Inspect optical block.
E018
Color Balance Error
  • Reset image settings.
  • Check color wheel assembly.
  • Update firmware.
  • Service optical system if needed.
E019
Voltage Instability
  • Check power source stability.
  • Avoid using extension cords.
  • Use voltage stabilizer.
  • Inspect internal PSU.
E020
General System Failure
  • Restart projector.
  • Disconnect power for 5 minutes.
  • Check internal cables.
  • Contact service center if persistent.
E999
Critical System Error
  • Immediate shutdown required.
  • Disconnect power supply.
  • Inspect for hardware damage.
  • Send for professional repair.
PRJ01
Canon Projector Not Turning On
  • Check power cable connection.
  • Ensure outlet is working properly.
  • Verify lamp cover is fully closed.
  • Try a different power source.
PRJ02
No Signal Display Issue
  • Check HDMI or VGA cable connection.
  • Select correct input source.
  • Restart projector and device.
  • Try a different cable or port.
PRJ03
Blurry Image Problem
  • Adjust focus ring.
  • Set correct projection distance.
  • Clean lens surface.
  • Check input resolution.
PRJ04
Overheating Issue
  • Clear ventilation vents.
  • Clean air filters.
  • Allow cooling time.
  • Avoid enclosed placement.
PRJ05
Dim Image Output
  • Check lamp life status.
  • Increase brightness settings.
  • Clean lens.
  • Reduce ambient lighting.
PRJ06
Projector Keeps Shutting Down
  • Check overheating conditions.
  • Clean filters and vents.
  • Ensure stable power supply.
  • Reset projector system.
PRJ07
Remote Not Working
  • Replace remote batteries.
  • Check IR sensor alignment.
  • Remove obstacles between remote and projector.
  • Test manual buttons on device.
PRJ08
No Sound Output
  • Check volume settings.
  • Verify HDMI/audio cable supports audio.
  • Select correct audio output source.
  • Test external speakers.
PRJ09
Image Distortion Issue
  • Adjust keystone correction.
  • Align projector to screen properly.
  • Check resolution compatibility.
  • Reposition projector for best alignment.

Frequently Asked Questions


What does PRJ01 Canon Projector Not Ready mean?
Check power connection, ensure projector is turned on, verify HDMI/VGA input source, and restart the projector.
What does PRJ02 No Signal Display Detected mean?
Check HDMI or VGA cable connection, select correct input source, restart projector and device, and try another cable or port.
What does PRJ03 Blurry Projection Output mean?
Adjust focus ring, set correct projection distance, clean lens surface, and check input resolution.
What does PRJ04 Overheating Warning mean?
Clear ventilation vents, clean air filters, allow cooling time, and avoid enclosed placement.
What does PRJ05 Dim Image Output mean?
Check lamp life status, increase brightness settings, clean lens, and reduce ambient lighting.
What does PRJ06 Projector Keeps Shutting Down mean?
Check overheating conditions, clean filters and vents, ensure stable power supply, and reset projector system.
What does PRJ07 Remote Control Not Working mean?
Replace remote batteries, check IR sensor alignment, remove obstacles, and test manual buttons on projector.
What does PRJ08 No Sound Output mean?
Check volume settings, verify HDMI/audio support, select correct audio output source, and test external speakers.
What does PRJ09 Image Distortion Issue mean?
Adjust keystone correction, align projector properly, check resolution compatibility, and reposition device.
What does PRJ10 System Reset Required mean?
Power off projector, wait 30–60 seconds, restart system, and test functionality.
What does PRJ11 Connection Failure mean?
Check HDMI/VGA cable, restart projector and device, try another port, and update firmware if needed.
What does PRJ12 Image Signal Loss mean?
Check input source, replace cable if faulty, restart devices, and verify correct input mode.
What does PRJ13 Fan Noise or Fan Error mean?
Clean vents, check fan obstruction, ensure airflow, and replace fan if noise continues.
What does PRJ14 Lamp Failure mean?
Check lamp status, reseat lamp, ensure lamp cover is closed, and replace lamp if end-of-life.
What does PRJ15 Power Failure mean?
Check power cable, test outlet, inspect adapter, and replace power supply if needed.
What does PRJ16 Firmware Error mean?
Update firmware, reset settings, reinstall system update, and restart projector.
What does PRJ17 Overload Protection Activated mean?
Turn off projector, allow cooling, check ventilation, and restart after cooldown.
What does PRJ18 Optical Engine Fault mean?
Inspect lens assembly, clean dust inside optics, restart system, and service optical engine if needed.
What does PRJ19 Network Connection Lost mean?
Restart router, reconnect Wi-Fi, check network stability, and update network settings.
What does PRJ20 General System Failure mean?
Restart projector, disconnect power for 30–60 seconds, check internal cables, and contact support if needed.
Important: Always disconnect power before performing repairs. Contact a qualified technician if the issue persists.