After freeze-over, wipers don't shut off
1993 Bonneville SE black.
One morning there was a large amount of ice on the wipers, and the wipers were on when I started the vehicle. I turned them off right away. While I was at work, the ice melted completely in the afternoon sunshine.
But when I started my car, I found that the wipers would not turn off. In the "high speed" setting, they wipe fastest. In the "off" position, they wipe fast, but a little slower. If I put them in the "delay" section, they wipe slowest. Until I can get this fixed, I have them on the delay setting.
Any idea what I would need to replace and what would be involved? Is this a problem with the switch, the wiper motor, or something else? Your replies are much appreciated.