AC/Heater blower running when car is off.

[teamgs]

Greetings,
Two days ago, I went into the garage and heard a louder than normal fan sound coming from my wife's '03 3.0 . Determined that it is the interior blower. It wouldn't shut off, no matter what. It finally ran the battery down (we were late leaving for a dinner party, and I didn't want to get dirty disconnecting the battery.) After recharging the battery overnight, the fan didn't automatically come back on again, but I haven't actually tested it on the road since.

I am sure that it is the HVAC blower continuing to run, and not the cooling fan. Secondly, I have searched and seen the posts regarding the Final Stage Resistor issues.

The issues with the final stage resistor seem to relate to the fan not coming on or operating sporadically and at unusual speeds. Does my issue seem like one that would be caused by the resistor? If so, since our aftermarket extended warranty has a deductible of $100, do you think it would be simpler just for me to get the part and replace it myself? I seem to remember seeing that it runs in the neighborhood of $70. I am very comfortable tearing down just about any part of any car, as I have done most all my engine repairs/upgrades and electronics installs on all my past vehicles.

Thanks for the advice!

Gary