User Manual
Troubleshooting 
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 39
Problem Solution
The ash is turned on but 
won’t re.
Make sure that fresh batteries are installed and in the proper orientation 
(Page 12).
The ash is set up as a wireless 
TTL slave but won’t re.
• Make sure that the master ash is within the transmission range and 
the wireless sensor on the slave is pointing toward the master ash. 
Remove any obstructions in the line of sight between the two 
(Page 36).
• The ambient light may be too high (Page 36).
The ash is set up as a manual 
(optical) slave, but the light is not 
noticeable in the picture.
Make sure that the ash is set to the appropriate slave mode (Page 34).
The edges of images look dark. Make sure that the ash zoom setting corresponds to the focal length of 
your lens (Page 24).
There’s a whining sound coming 
from the ash.
This is normal and does not indicate a malfunction. When the ash 
becomes warm from continuous use, vibrations inside the unit may 
cause this sound. It will dissipate as the unit cools.










