90 blower resistor blew up AGAIN

[j fizz]

hey all,

i'm hoping for a little btdt: i replaced my blower resistor about 5 months
ago. it's recently gotten heavy useage as its been rainy and i need to leave
the ac on so the car doesnt fog up. last night the resistor died [hi speed
fan only]. that seems like an awfully short service life.. anyone know of
any usual suspects before i start digging into it? any common upstream
problems that will cause this thing to break so quickly? the cars witing is
al stock but has no other glitches [knocking on audi-branded wood].

or did i maybe get a bum resistor. the blower was replaced by dealer a few
years ago [should be ok]..

thanks as always in advance..

happy holidays,

jim

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