Mirror defrofrost question on ProStar

[DosGatos]

Don't know about the flashing light, but my driver mirror stopped defrosting. Removing is a trick but doesn't require complete disassembly.
I removed the mirror and put an ohm meter on the heater filament and the ohms readout was too high to draw any current. The draw value is labeled on the mirror. Price for a new mirror at the dealer was what it was. I didn't argue. Just made the connections, snapped the new mirror in and down the road.