E42.4.2.0 - No valid temperature measurable at camera/LED board

Product line: maxx pro

Temperature value of the camera or the LED board above the appliance door is invalid

Possible reason for fault	Corrective action
Temperature value cannot be read	Ensure there is cool air around the appliance Restart the appliance
The cooling air volume for the electronics is too low	Clean the cooling air grille With the appliance switched off, clean the dusty cooling air grille and put the appliance back into service.