Console display seems to have black lines runningh through it. Or has a shadow on the display or ghost lines appearing from the numbers.

Applies to models: NTL08009,NTL12309,SFTL18909,24967,30362

The contrast of the console display may be set too high.

In some cases you can adjust the contrast of the console. These instructions will be found in the user's manual. The console will also default to a higher contrast setting if there is a firmware update or if the console is reprogrammed. The contrast will need to be adjusted again after these updates.