New heater blower
Discussion
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andygtt said:
I have an old dossier blower in the loft so looking forward to you solving the issues then coming round to fit mine :-)
LOL i dont think you need my help Andy. I Don't know if its going to be any better because the motor looks smaller on the cossie blower! But the resistor looks much better and the fins on the fan are a better shape/more dished. Fingers crossed!
Ok i had a little play around today. As my car is in bits i had to hook the heater blowers up to a spare car battery to see them working. a was able to touch the live on each terminal to find out which one is most to least powerful. this new fan has four speeds instead of three so i will ditch the lowest speed. To get the highest speed you just bipass the resistor and run live straight to the motor. So i have done this on my new and old fans to find that blow for blow there isn't alot in it! i have now bolted the cossie blower and box back on to the car, so when i get chance i will hook up a permanent live to it and see if there is an improvement.
for reference my blower that i have removed is a landrover one.
Any one that is thinking about changing there heater blower, the only way is to remove the box which means unbolting four bolts from under the dash!
Steve
Edited to add - im even thinking now that maybe my fan was even spinning backward and that's why it was s
t, not sure tho as i cant check which wires are which on my car as i dont have a wiring loom etc.
for reference my blower that i have removed is a landrover one.
Any one that is thinking about changing there heater blower, the only way is to remove the box which means unbolting four bolts from under the dash!
Steve
Edited to add - im even thinking now that maybe my fan was even spinning backward and that's why it was s
t, not sure tho as i cant check which wires are which on my car as i dont have a wiring loom etc.Edited by 2.5bluenob on Sunday 11th August 22:48
mgbond said:
That's not strictly true, u can cut the box open and remove the fan assy as I did.
Bondy
What build no. is your car Bondy? My box had to be removed as there are four bolts fixing the blower into the box. And to access them the box needs to be removed. I then still had to cut the top of the box because the blower will not come out through the existing hole.Bondy
Steve
2.5bluenob said:
What build no. is your car Bondy? My box had to be removed as there are four bolts fixing the blower into the box. And to access them the box needs to be removed. I then still had to cut the top of the box because the blower will not come out through the existing hole.
Steve
Good point, I think mine un screwed as the nut dash side was silicones on. However they then fell off so couldn't screw it back on. I just silicones the blower back into position. Steve
Car number 16
mgbond said:
Good point, I think mine un screwed as the nut dash side was silicones on. However they then fell off so couldn't screw it back on. I just silicones the blower back into position.
Car number 16
Mine is no. 36 so i guess noble changed their method of fitting. The blower wasn't easy to remove from the box even with the box removed from the car!Car number 16
ok just hooked a battery up to the blower while its bolted on to the car and inside the car it works much better, however its not brilliant compared to any other car. But before it was hardly blowing at all.
So i am convinced that before my fan was wired up wrong and rotating the wrong way!
for everyone that is thinking about fitting bigger resistors - im not sure its the way forward. Im no electrician and before taking the fan apart to play i admit i didnt have a clue how it works, but from playing around touching the terminals one at a time with the live i think i have a good understanding of it ;-
one negative wire goes to the fan, one positive goes on the fan, then on the resistor there are two conectors, one to a long coil and one to a short coil a long coil which are both negative. To give give the three speeds you are switching between the three negatives.
My thinking is that for the top speed the wires do not even go to the coil, so im sure that fitting a new resistor will not affect top speed of the fan!
Or maybe ive got it all wrong, who knows! im only a wood butcher!
So i am convinced that before my fan was wired up wrong and rotating the wrong way!
for everyone that is thinking about fitting bigger resistors - im not sure its the way forward. Im no electrician and before taking the fan apart to play i admit i didnt have a clue how it works, but from playing around touching the terminals one at a time with the live i think i have a good understanding of it ;-
one negative wire goes to the fan, one positive goes on the fan, then on the resistor there are two conectors, one to a long coil and one to a short coil a long coil which are both negative. To give give the three speeds you are switching between the three negatives.
My thinking is that for the top speed the wires do not even go to the coil, so im sure that fitting a new resistor will not affect top speed of the fan!
Or maybe ive got it all wrong, who knows! im only a wood butcher!
2.5bluenob said:
ok just hooked a battery up to the blower while its bolted on to the car and inside the car it works much better, however its not brilliant compared to any other car. But before it was hardly blowing at all.
So i am convinced that before my fan was wired up wrong and rotating the wrong way!
for everyone that is thinking about fitting bigger resistors - im not sure its the way forward. Im no electrician and before taking the fan apart to play i admit i didnt have a clue how it works, but from playing around touching the terminals one at a time with the live i think i have a good understanding of it ;-
one negative wire goes to the fan, one positive goes on the fan, then on the resistor there are two conectors, one to a long coil and one to a short coil a long coil which are both negative. To give give the three speeds you are switching between the three negatives.
My thinking is that for the top speed the wires do not even go to the coil, so im sure that fitting a new resistor will not affect top speed of the fan!
Or maybe ive got it all wrong, who knows! im only a wood butcher!
It is the way forward, the only reason for changing the resistor is so u only do it once. If u replace the old mess of a resistor with another one then it will burn out again at some point. So i am convinced that before my fan was wired up wrong and rotating the wrong way!
for everyone that is thinking about fitting bigger resistors - im not sure its the way forward. Im no electrician and before taking the fan apart to play i admit i didnt have a clue how it works, but from playing around touching the terminals one at a time with the live i think i have a good understanding of it ;-
one negative wire goes to the fan, one positive goes on the fan, then on the resistor there are two conectors, one to a long coil and one to a short coil a long coil which are both negative. To give give the three speeds you are switching between the three negatives.
My thinking is that for the top speed the wires do not even go to the coil, so im sure that fitting a new resistor will not affect top speed of the fan!
Or maybe ive got it all wrong, who knows! im only a wood butcher!
And as stated, the top speed doesn't use the resistor. The resistor acts as a potentiometer as like the volume control of your stereo
mgbond said:
It is the way forward, the only reason for changing the resistor is so u only do it once. If u replace the old mess of a resistor with another one then it will burn out again at some point.
Does it really matter if it burns out, i'm sure everyone only uses their blowers on top speed! 
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