That's really odd that the contrast would start going dim and then changing the setting in the options restores it. A couple questions:
How frequently does this occur? Every key cycle? Frequently? Weekly? Every few weeks?
Once it starts to dim, how long does it take for the contrast to dim completely out? A few seconds? A minute?
Does the PID display still function correctly when the contrast begins to dim?
If you can't make it to the settings, how do you get the display to work? Turn the key off? Unplug and then reconnect the cable?
I don't have any idea where to even begin to look on this, so any information would be extremely helpful.
Thanks!
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