sounds like the blower regulator is gone again.

Not sure of the numbers but it blower should go from hi to low speed as you spin the dial (Min - Auto - Max).

Maybe good news it's still under warranty. Also make sure that the 'white' grease make good contact with the blower's housing to dissipate the heat in the regulator.

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Regards . . . . JimF
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'94 S500 Cpe

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