Nikon issued a service advisory for the Coolpix L23 compact camera warning that it may overheat causing the top cover to become deformed. This is the first official service advisory after Nikon's Image Authentication System got cracked and D5000's power issue. The full details:
July 14, 2011
Notice to users of the Nikon COOLPIX L23
Thank you for choosing Nikon for your photography needs.
While Nikon takes great measures to assure high quality in its imaging products, we have confirmed that in some rare cases, the Nikon COOLPIX L23 digital camera may generate excessive heat, causing the top cover to become deformed. While there is no danger of fire, we would ask users of the affected cameras to immediately stop using the cameras, and remove the batteries or disconnect the AC adapter.
We are currently making the necessary preparations to resolve this issue by repairing affected cameras.
In some rare cases, when the batteries are inserted, or the AC Adapter EH-65A is connected, even with the camera turned off, excessive heat is generated in the top portion of the camera, which sometimes causes the top cover to become deformed.
To determine if your COOLPIX L23 is affected by this Service advisory please contact Nikon Customer Relations at 1-800-Nikon US (1-800-645-6687), 8am to 2am (Eastern), 7-days-a-week. Nikon will need you to provide the camera's serial number which is the 8-digit number on the bottom of the camera body.
Cameras with a white circle on the tripod socket, like that shown in the photo below, have already been inspected and the necessary adjustments made to prevent this issue from occurring. Therefore, if your camera has the white circle, you may continue to use the camera safely.