My blower motor just quit, was working fine and then... Nothing.

So I pulled it apart and found voltage at the plug.

Dug a little deeper and noticed that once I plug the motor in I no longer have voltage across the wires, unplug the motor and voltage returns.

The bearing looks fine and i don't see or smell any signs of damage.

Is it time for a replacement?

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1987 300SDL 167k
1992 Volvo 740 140k
1990 Volvo 740 250k
1989 Volvo 240 269k

Anyone want to trade an old Volvo for an '87 300sdl?

sounds like the fuse is corroded.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Yep, fuse does sound like a likely suspect. Just spin the fuse a little with your fingernail and it should make a better connection.

Some things you might try after checking and/or replacing the fuse:
Spin the motor shaft by hand and make sure there's no binding. Power disconnected of course.
Test it with a known good 12V battery. Be careful of the torque of the motor and not to mince your hands.

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Codifex
1981 240D ChinaBlue (Got her running with a donor engine.)
1983 300DTurbo w/sunroof.
1984 300TD manual sunroof. (Electrical Gremlins)

Great, thanks I will give that a try.

Turning by hand the fan spins with a slight resistance, seems normal.

__________________
1987 300SDL 167k
1992 Volvo 740 140k
1990 Volvo 740 250k
1989 Volvo 240 269k

Anyone want to trade an old Volvo for an '87 300sdl?

That did the trick.

The fuse looked fine but upon closer inspection I found a hairline crack through the metal strip at one end.

Replaced it and the blower works fine.

Now to figure out why I'm in fifth gear by the time I hit 30mph.

__________________
1987 300SDL 167k
1992 Volvo 740 140k
1990 Volvo 740 250k
1989 Volvo 240 269k

Anyone want to trade an old Volvo for an '87 300sdl?

If you're referring to an automatic transmission, there's a lot of people wondering how you manage to get it in fifth at all.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13