My blower motor is acting really weird
Thread Starter
Honda-Tech Member
Joined: Jan 2005
Posts: 140
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From: lethbridge, Alberta, canada
so i have a 94 civic cx, the blower motor has given me problems for the past couple years. The wires were burning up and everything else. I finally got those fixed and they havent caused any problems
My problem now is the motor isnt working when it is up in the dash. If i take it out and turn it up side down (so it is spinning on the floor) it works. But when it tilt it right side up it stops working. it wants to but just doenst. Has this happened to anyone. Any suggestions as to how to fix it?
The car is a cx so it has no air, and it is just to damn hot not to have air blowing in the car.
My problem now is the motor isnt working when it is up in the dash. If i take it out and turn it up side down (so it is spinning on the floor) it works. But when it tilt it right side up it stops working. it wants to but just doenst. Has this happened to anyone. Any suggestions as to how to fix it?
The car is a cx so it has no air, and it is just to damn hot not to have air blowing in the car.
Bearing in the motor is shot, and/or the commutator is making contact with the magnetic field coils, resulting in no movement when it is upright.
A DC motor works on repelling poles of dissimilar charges, if the + charge makes contact with a - charge, it will not repel, because opposites attract. The motor spins because the commutator is set up so that whenever the + on the shaft meets a + on the magnetic field windings, they repel, and spin the motor. That is most likely the reason the wires burned up, because if there is a direct connection, there is no resistance, and is just like touching the positive terminal to ground, it sparks, and produces a lot of heat. The contact may have still had resistance, but the current flow to them was greater than the wires would allow, causing them to burn up, fusible links use this principle to prevent huge current draws, so the wire will break if too much power for the wire grade used is passed through it.
A DC motor works on repelling poles of dissimilar charges, if the + charge makes contact with a - charge, it will not repel, because opposites attract. The motor spins because the commutator is set up so that whenever the + on the shaft meets a + on the magnetic field windings, they repel, and spin the motor. That is most likely the reason the wires burned up, because if there is a direct connection, there is no resistance, and is just like touching the positive terminal to ground, it sparks, and produces a lot of heat. The contact may have still had resistance, but the current flow to them was greater than the wires would allow, causing them to burn up, fusible links use this principle to prevent huge current draws, so the wire will break if too much power for the wire grade used is passed through it.
Thread Starter
Honda-Tech Member
Joined: Jan 2005
Posts: 140
Likes: 0
From: lethbridge, Alberta, canada
Thank you very much, it's nice to see that you can still get a good anwser with out getting flamed.
to you . Time to look for a new motor i guess now.
to you . Time to look for a new motor i guess now.
I have one from my 92 dx, took it out when I gutted the car. The car also had no A/C so it's just like yours. PM me if you'd be interested in buying- I'd sell you the entire assembly, not just the replacement motor.
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imadigitalgod
Honda Civic / Del Sol (1992 - 2000)
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Jan 16, 2009 12:19 AM




