My a/c heater blower motor works intermittently

What is your question?

The fan for the heater and a/c works intermittently at all speeds and settings. When the blower works everything works fine and the unit displays is bright and sharp. When the blower stops the only air is from the vent but no fan and the display is dim and weak.

How long has your 1999 Buick LeSabre had this problem?

nearly six months