Greetings! I have a 03 360 spider. Sometimes the blower will not shut off. This problem is intermittent. After removing the key and closing the doors, blower sometimes remains on. After pushing all of the bottons on the dash....my only remedy is to cut battery power off under the hood. After awhile the circuit seems to reset and all is well till next time. I have replaced the AC ECM...thought it was fixed, but NOT. Back to square one. Thanks for your help!!
The opposite happened to mine - the AC wouldn't turn on. There is a blower motor restrictor that broke. Dealer didn't have much trouble fixing it.
evidently a relay somewhere is acting up... power should be cut with key out.. unless a relay sticks in the closed position... my guess.
Thanks for your post mred and charmer3. Hopefully someone out there has experienced the same problem. It is not just on AC it does it on heat as well. Same blower for both. Thanks again!!