Troubleshooting Guide - Canon 600EX-RT Instruction Manual

Troubleshooting Guide

If a problem occurs with the flash, first refer to this Troubleshooting
Guide. If this Troubleshooting Guide does not resolve the problem,
contact your dealer or nearest Canon Service Center.
Normal Shooting
Power does not turn on or the flash does not fire.
Make sure that the batteries are installed in the correct orientation
(p.14).
Insert the mounting foot into the camera's hot shoe all the way, slide the
lock lever to the right, and secure the Speedlite to the camera (p.15).
If the flash recycling time takes 30 sec. or longer, replace the batteries
(p.14).
Even when using external power, insert batteries into the Speedlite
(p.14).
If the electrical contacts of the Speedlite and camera are dirty, clean the
contacts (p.6).
The power turns off by itself.
The Speedlite's auto power off has activated. Press the shutter button
halfway, or press the test flash button (p.16).
The picture is underexposed or overexposed.
If there was a highly reflective object (glass window, etc.) in the picture,
use FE lock (p.24).
If the subject looks very dark or very bright, set flash exposure
compensation (p.22).
When high-speed sync is set, the effective flash range is shorter. Move
closer to the subject (p.25).
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