Canon Macro Ring Lite MR-14EX II - Manual (Page 73)

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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
Make sure that the batteries are installed in the correct orientation (p.14).
Make sure that the battery compartment cover is closed (p.14).
Replace the batteries with new ones.
Insert batteries into the flash unit, even when using an external power
source (p.68).
Insert the mounting foot into the camera’s hot shoe all the way, slide the
lock lever to the right, and secure the control unit to the camera (p.15).
If the < G> indication remains displayed for 30 sec. or longer,
replace the batteries (p.14).
If the electrical contacts of the control unit or camera are dirty, wipe the
contacts (p.9) using a dry cloth.
The MR-14EX II’s auto power off has activated. Press the shutter button
halfway, or press the test flash button (p.18).
If there is a highly reflective object in the picture, use FE lock (p.29).
If the main subject looks very dark or very bright, set flash exposure
compensation (p.27).
With high-speed sync, the faster the shutter speed, the lower the guide
number will be. Move closer to the subject (p.30).
Do not fire slave C directly pointing toward the main subject (p.44).
Troubleshooting Guide
The power does not turn on.
The MR-14EX II does not fire.
The power turns off by itself.
Pictures are underexposed or overexposed.
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