Gaspardo Maize drill

[ccp contracting]

I have a Gaspardo Sara Maize drill , the monitor continually is alarming that its low seed drop , I have had the monitor checked the brain box on the drill checked changed magic eye changed still the same and yet the seed is running the same as the other 5 units ,has anyone else any ideas it is doing my head in . Thanks for any help.

 

[trev7530]

Sensors clean?
Got the shrouds around them, mine can play up if the suns in the right place.
Anyone local got a control box you could try?

 

[ccp contracting]

All the magic eyes are clean , I carry a soft tooth brush to clean them with . My neighbour has a new drill so we tried his box , made no difference .