edwardbertie posted an answer for this Heating & Cooling:
"replace thermostat."
edwardbertie posted an answer for this Vanguard Heating & Cooling:
"check lamp, power feed, thermostat."
edwardbertie posted an answer for this Acer Office Equipment & Supplies:
"I have an Acer DSV0817 projector with a remote control. While running a PowerPoint..."
edwardbertie posted an answer for this Acer Office Equipment & Supplies:
"dsv0817 picture ok then hum sound comes up and picture then, gos into black @white source..."