The OVERHEAT indicator is flashing on the screen
If the flash heats up after continuous shooting or when using it in hot environments, it may stop working. To help prevent overheating, do not exceed more than twenty continuous flash emissions. Set the POWER switch to OFF for approximately 10 minutes to allow the flash time to cool down.
NOTE: For the HVL-F60M, when you attach the bounce adaptor (supplied) the camera automatically sets the zoom position of the flash to the widest value regardless of the focal length of the lens used. This causes the flash to continuously light up a wide area and increases the amount of flash light, causing the camera to overheat easily. When you have attached the bounce adaptor, rest the camera for about a minute between shooting to prevent overheating. Use the bounce adaptor only when you use bounce flash photography. Except with bounce flash photography, the adaptor does not give softer lightning effect.