Loss of touch screen capability in flight

[lavallejd]

Here is a new one that I think maybe heat related.
On a sunny hot afternoon in Charleston, SC, started the plane, system up and running, went through my screen generated checklists and proceeded to start my take off. After climbing out through 400 feet, went to touch the screen and no response. touched the HSI select and nothing. screen reponsed to LSK commands but no reponse on the screen. Screen was stuck on half screen mode forhte EMS so I had to use the other display for engine monitoring. Other display worked just fine.
A week later, on another relatively hot day (+90°), screen lost touch command capability again while on the ground. This time I recylced the circuit breaker and everything came back up with no issues.
Is there an operating tempertaure limit?
Should I be concerned?
Should there be an emergency procedure for this condition? In other words, in flight are we allowed to recylce power to the displays?

 

[lavallejd]

The display specification (Page 2-8 of Document 101320-037, Revision AL) that it was certified to DO-160 Category A (though it should be C if claiming 35,000') with an operating temperature between -30°C to +60°C. So above 140°F, display functions could fail? With the cockpit baking at 95° temperatures it maybe possible to see 140°+ temperatures (aggravated solar). Has anyone else experienced this anomaly on hot days?
If this condition is resettable once ambient temperatures are within tolerance, an auxiliary cooling fan maybe needed instead of an RMA back to Dynon.