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Author Topic: Blower motor failure?  (Read 5375 times)

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alexw80

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Blower motor failure?
« on: 22 August 2011, 10:06:13 »
Guys, I need your wise words of advice before I start pulling things out at random to see what's wrong. My blower motor stopped working about 3 years ago now, no hot air or cold. My first thought was the fuse, checked and seems fine. I managed to obtain another blower motor from breakers, replaced and still doesn't work. I took my old one and checked it by running the leads to the batt, it worked  >:(

So, I know it's not the motor itself, there seems to be power getting the the controls, I can hear the servos switching vents when I press the buttons.

The local breakers have an Omega in their yard, the last time I saw it the blower motor and resistor were still intact.

My question is this, is there anyway to narrow down the fault before I start pulling things out and replacing them all one by one  :-?
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freecall666

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Re: Blower motor failure?
« Reply #1 on: 22 August 2011, 13:00:06 »
cannot remember if there is a low volt relay to high volt power to the motor, think there is cannot remember but think it in fuse box under stering wheel or could be the the set in the back of the glove box.... been a long time..
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alexw80

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Re: Blower motor failure?
« Reply #2 on: 22 August 2011, 14:13:16 »
Must be in the Fuse Box, don't have a glove box at the moment lol
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RobG

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Re: Blower motor failure?
« Reply #3 on: 22 August 2011, 14:19:15 »
What fuse did you check, the green maxi one top L/H of cabin fusebox?
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alexw80

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Re: Blower motor failure?
« Reply #4 on: 22 August 2011, 15:51:41 »
Yea, 30amp F33 slot IIRC. Fuse was intact.
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RobG

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Re: Blower motor failure?
« Reply #5 on: 22 August 2011, 16:10:52 »
Possibly resistor packed up then
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alexw80

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Re: Blower motor failure?
« Reply #6 on: 22 August 2011, 16:23:50 »
Was thinking that. Oh well, another thing to add to the breakers list then. Thanks Rob
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RobG

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Re: Blower motor failure?
« Reply #7 on: 22 August 2011, 17:15:18 »
Like for like. CC resistors are different to standard AC
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alexw80

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Re: Blower motor failure?
« Reply #8 on: 22 August 2011, 18:52:00 »
Noted
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freecall666

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Re: Blower motor failure?
« Reply #9 on: 23 August 2011, 01:50:22 »
look for this relay GM  90 459 640  its red/orange, Heater fan motor relay. its 40amp.. well blower relay.... :y will be in fuse box or around there.

« Last Edit: 23 August 2011, 02:03:48 by freecall666 »
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alexw80

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Re: Blower motor failure?
« Reply #10 on: 25 August 2011, 08:05:06 »
Probably a silly question, but how do you go about getting the resistor out and is it easy?
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robson

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Re: Blower motor failure?
« Reply #11 on: 25 August 2011, 09:58:46 »
Read the Haynes manual but be very careful I managed to snap both plastic securing lugs off ,it was very cold at the time, this is a disaster as there is then nothing to hold the resister in place
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alexw80

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Re: Blower motor failure?
« Reply #12 on: 25 August 2011, 20:41:21 »
Does it just slide out? Had a quick go on it but it seems to only move on one side. Moved the securing lugs to one side but the resistor didn't seem to want to shift.
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robson

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Re: Blower motor failure?
« Reply #13 on: 26 August 2011, 08:44:24 »
Mine on 2.6 facelift just pulled out after lugs were out of way.
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robson

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Re: Blower motor failure?
« Reply #14 on: 26 August 2011, 08:46:40 »
sorry getting confused it was on my P reg 2.5 that I changed the hedgehog not the 2.6 but I would have thought that it was the same.
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