5508D1D internal temperature warning

How do you clear the internal temperature warning on one of the new LED dimmers.
The other day was very warm and we had been out, therefore no aircon on and for some reason when we returned I opened the the C-Bus cabinet door and notice a flashing Green and Red indicating an internal over temperature, room was at a 30C, I measured the temp just above the air vents on the dimmer at 38.7C.
I did not follow up on it for a few hours and as the house cooled down to a 23C the LED continued to flash and the temp above the dimmer very similar.
2 days later no change in LED status still flashing and again temperatures similar.
I couldn't find any information how to clear this error in the software, installation instruction, or user manual. I reverted to the old favourite of switch it off and back on again. which cleared the fault.
Temperatures again are all similar and few days later no reoccurrence of the error.
Is there a way of clearing the flashing LED on the dimmer? to allow it to show normal green status.