Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: robson on 22 December 2009, 18:38:04
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On my Omega 2.5 with climate control Is the blower speed controller the part called 1 a hedgehog,final stge unit, resistor pack, or 2 a square box in the blower area with about 5 wires attached.I am struggling to decide which to replace as my blower will not turn off even with the ignition off.
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Mine's started doing a similar thing, not blowing continuously when the ignition is off but does run on for about 10 seconds after I've turned the ignition off and pulled the key out!!!!
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(http://i190.photobucket.com/albums/z257/belisensis/OMEGAFORUM/blowermotor.gif)
#1 is the housing. #4 is the resistor. #3 is the actual motor
Standard heater
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Thanks for the picture does this cover a model with climate control mine has this thing that is called by some a hedgehog what does that do
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(http://i190.photobucket.com/albums/z257/belisensis/OMEGAFORUM/fanmotoraircon.gif)
#5 aircon motor. #18 ECC motor
#6 & 19 are the relevant resistors
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Theres the hedgehog, I presume that will be the item at fault on climate equipped models that makes the fan run on? I'm assuming it is as my old mans merc did the same thing and that was the regulator at fault then. :o
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Climate uses the speed regulator with alloy fins, not the open case resistor network.
Usual cause of failure is a blocked drain in the scuttle which lets water into the fan motor and controller so check it and clean out if necessary when fitting the replacement.
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Thanks Matchless Is that what they call a hedgehog
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I had a Matchless I lived near the factory and saw them being tested lovely job
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As you may remember my blower kept running even with the ignition off. I have fitted a new regulator Hedghog type part no.90512510 purchased on Ebay(topsolu). And all seems to be well. Probably the most difficult job I have done only because space is limited.Lots of cuts and bruises.
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Easy enough with the glovebox removed.......
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Removed glove box but trying to release the clips which hold the regulator and pull it out at the same time almost impossible in fact I broke off the clips and now have to find a way to hold unit in housing
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as i said in your other thread i did mine srart to finish in my dinner half hour,them lugs i could see why they could be difficult imho they would of been better if they were part of the hedgehog.try some decent tape with a couple of spots of super glue maybe,someone will come along with a good idea :y
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I quite agree I often feel that car designers are trained to make things difficult for DIY repairs.I wonder if the hedgehog has to go in the mounting why not fixed somewhere in that area probably has to be there
to keep it dry. I was suprised how hot the hedgehog gets when the fan is on
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I quite agree I often feel that car designers are trained to make things difficult for DIY repairs.I wonder if the hedgehog has to go in the mounting why not fixed somewhere in that area probably has to be there
to keep it dry. I was suprised how hot the hedgehog gets when the fan is on
The 'hedgehog' is a heatsink for either a series resistor or simple speed regulator for the blower motor. As you have discovered it generates a lot of heat so it is placed in the airstream to keep it cool.
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The recess that the hedgehog sits in I thought was a closed box or have I got that wrong.Will have to have a look tomorrow if I am Allowed
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I could be wrong (apologies if that is the case) as I haven't had to touch the fan speed control on either of my Omegas.
On my MK1 Carlton there was a series resistor in the airstream of the fan. When it failed I could only select either off or full speed.
The fins on the hedgehog must be there for a purpose. Cooling is the only purpose that I can think of.
[edit]If you know that the hedgehog gets hot presumably there was nothing in the recess. Therefore you would have felt air being blown out (or sucked in) if it was in the air duct from the fan :-/[/edit]
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I could be wrong (apologies if that is the case) as I haven't had to touch the fan speed control on either of my Omegas.
On my MK1 Carlton there was a series resistor in the airstream of the fan. When it failed I could only select either off or full speed.
The fins on the hedgehog must be there for a purpose. Cooling is the only purpose that I can think of.
they pull some juice them fans,when i did temp bodge on mine i put a switched earth to the motor and had to run it in short bursts cos the wire got hot
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I ran the test with the Hedghog connected away from its housing to make sure it was ok.Thats how I knew it was hot hope I havnt done any damage Looking at the pictures on this post I think the housing is shown open ended.
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No 17 on drawings from ROBB G is that the housing
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Sorry got it wrong the Hedgehog does sit in the air stream As I broke off both clips I am trying ways to hold it in the mounting As the fan tunnel is probably polypropylene it cannot be glued Probably jam in with a piece of wood very technical and hope it holds ok
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Has anybody attempted to glue a speed controller into the housing
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I never had to touch the speed controller on my previous Omega so forgive me if these suggestions aren't helpful
1. can you get a cable tie (or a daisy chain of cable ties) round the duct to hold the hedgehog in?
2. self tapping screws?
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I thought about a tie around the duct but I dont think that you can get to it .I have also considered self tappers. Maybe mastic maybe carpet tape, At present it is jambed in with a piece of wood .
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I had a Matchless I lived near the factory and saw them being tested lovely job
Well done, you are the first in the history of this forum to recognise the make and badge.
Its not on the road at present, mostly due to Mr Lucas and his products.
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A bead of silicone might hold it in place, around edge of controller then push it home.
Hot melt glue another idea but I suspect it would soften too much on hot sunny days (remember those)
This job is fairly easy in summer but at this time of year the wiring is stiff to move and the plastics are brittle as you have found.
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I had a Matchless I lived near the factory and saw them being tested lovely job
Well done, you are the first in the history of this forum to recognise the make and badge.
Its not on the road at present, mostly due to Mr Lucas and his products.
Seriously?
I thought it too obvious to require comment.
I haven't had the pleasure of jampot ownership, just Royal Oilfields (not Indian) & Triumphs.
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Hello Matchless What are you restoring I had a 350 cant remember the model. As I said when I walked to school I passed the factory and when I saw a tester go out I thought thats the job for me especially when it was a Porcupine on test