Nikon SB 900 thermal fuse and SB 900 power failure.

Due to high volume of rapid shutter releases with the Nikon SB-900 flash, the Nikon SB-900 has a thermal fuse that will cut off power to prevent damage from over heating. This safety feature was installed due to the high volume of flash firing by digital DSLR users that have a history of damaging flash tubes and melting cases, diffusion panels and other internal parts. This safety feature will reduce repair needs, but users that are not aware why the flash would loose power think the Nikon SB-900 is failing. As soon as the flash and thremal fuse cools, the power is restored again.

Southern Photo is looking for ways to by-pass this fuse and we will anounce our results shortly. Some customers may choose to by-pass this fuse if we are successfull.

If your Nikon SB-900 is in need of repair, Southern Photo Technical Service is your Nikon Authorized Sevice Center. Please supply a copy of sales slip for all warranty claims and estimates will be provided for post warranty repairs. Visit the SPTS web site for address and shipping instructions at http://www.sp-ts.com or call SPTS toll free at (866) RUSH-FIX.