Blower wont working.
Elder User
Joined: Dec 2004
Posts: 718
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From: North Jersey, New Jersey
Did you try connecting the blower directly to the battery? If so and the motor still doesn't turn read on.
I have opened DC and AC motors before so here are some basic things to check.
Spin the shaft and feel if its binding. If it is lubricate it and test if its not.
Check to see if the brushes are worn. If the motor has alot of miles on it thats a possibility. The motor would then be making intermittant contact.
The brushes are at the back of the motor in little holders pushed by springs against the rear of the rotor shaft.
Also check for a burnt commutator (the thing that the brushes make contact with on the rotor) if its burnt the motor is shot. The commutator switches the polarity so that the rotor shaft is constantly opposing or "chasing" the opposite magnetic field.
Some DC motors are brushless but since I have never opened an Aero blower I can't say which type the Aero has. If the motor is brushless there is not much you can do for it. Other than lube the shaft if its binding.
I have opened DC and AC motors before so here are some basic things to check.
Spin the shaft and feel if its binding. If it is lubricate it and test if its not.
Check to see if the brushes are worn. If the motor has alot of miles on it thats a possibility. The motor would then be making intermittant contact.
The brushes are at the back of the motor in little holders pushed by springs against the rear of the rotor shaft.
Also check for a burnt commutator (the thing that the brushes make contact with on the rotor) if its burnt the motor is shot. The commutator switches the polarity so that the rotor shaft is constantly opposing or "chasing" the opposite magnetic field.
Some DC motors are brushless but since I have never opened an Aero blower I can't say which type the Aero has. If the motor is brushless there is not much you can do for it. Other than lube the shaft if its binding.
Last edited by krankshaft; Oct 15, 2007 at 08:53 AM.
Elder User
Joined: Dec 2006
Posts: 830
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From: Kitchener,Ontario,Canada
Originally Posted by Pablo-UA
It seems to me motor is not OK.... Voltage on motor is 11.2 V, but no draw.
Aeroman
Elder User
Joined: Dec 2004
Posts: 718
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From: North Jersey, New Jersey
If it is the winding there is either an open from a broken piece of enameled wire or the insulation of an enameled wire failed causing a short. In either case a new blower is in order.
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Post Fiend
Joined: Oct 2005
Posts: 5,242
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From: Kiev, Ukraine
Blower has just been rebuilt. Brushes were replaced with ones from Volvo Truck alternator. Hope will work for many years.
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Junior User
Joined: Jun 2007
Posts: 96
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From: south of France
I have the same problem, two years ago i changed the brushes (don't laugh, I have cut in two parts a brush from a Peugeot diesel starter with two copper lines, and put it to the correct size with a file); since last summer the blower is erratic, sometime it run, sometime not, i have to move the climate fonction handle side to side before it start ( mine is 1989, with the old dashboard), sometime it start alone when the van jerk on a bump, sometime i have to stop, open the hood, and shake the motor connector, really irritating......
Pablo, the motor is easy to open with a little chisel: the brush plate is crimped on the motor, you juste have to insert paper clips to hold the brushes open when reassembling; the bad new is that I think crimping can't be done too much time.
Pablo, the motor is easy to open with a little chisel: the brush plate is crimped on the motor, you juste have to insert paper clips to hold the brushes open when reassembling; the bad new is that I think crimping can't be done too much time.
Last edited by pinceau; Oct 17, 2007 at 03:03 PM.