Vanagon VW T25 T3 Blower Motor - PWM control upgrade (PT 1)

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How to bypass the resistors entirely and fit a modern PWM motor controller. Controller has to be rated at 20amps minimum and control on flylead makes fitting easier. Controller was just shy of £9 on ebay. The controller should NOT be fitted to an old fan motor as it could exceed rating of controller on startup. The earth lead from motor which normally goes to earth crown needs to be located and moved to negative on fan side of controller instead. Project: club8090.co.uk...

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10 сен 2024

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Комментарии : 36

@vw4x4 8 лет назад

Interesting upgrade. As a side note, most vehicles today have several DC motors that are controlled in the same manor. Its obvious that they have a similar arrangement and I'm sure there is an off the shelf device for this.

@jwgmail 8 лет назад

Cool, didn't occur to me that it'd be infinitely variable. Will do this when I replace my dead fan motor!

@jwgmail 4 месяца назад

Oh my God, that was 8 years ago. I'M JUST FINALLY DOING THIS

@Sooper8 5 лет назад

Thanks for this! Much appreciated

@proffessasvids 2 года назад

Brilliant! Xx

@chalos9752 5 лет назад

Excellent!

@jwgmail 4 месяца назад

Great idea to bench test it

@vwthings 4 месяца назад

Yeah - before you can no longer get at it. 😀

@jackyc7672 8 лет назад

hello, does it work on the AC blower motor as well ? what kind of the DC moter do you use for the replacement ?thanks

@ratgreen 7 лет назад

Did you get any noise across your radio etc after fitting this. I'm tempted to do this for better control but from researching people seem to think they will chuck out a lot of EMF

@vwthings 7 лет назад

None whatsoever. The unit is screened anyway.

@derrickhembrow1212 6 лет назад

Have done this on my van and have to say brilliant when working . I put an inline fuse in as well but it keeps blowing the control er I used looks exactly the same but is rated at 10-63 v 20a would this be the problem .thanks. Del

@vwthings 6 лет назад

what sized fuse?

@jwgmail 2 года назад

Part 2: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-3S24Hty4_bs.html

@mikebeaumont137 4 года назад

Hello where did you get the switch from please. Mike

@vwthings 4 года назад

Comes with it Mike :) Search for 20amp PWM or motor controller 12v

@mikebeaumont137 4 года назад

After thought and where do you wire it into.

@vwthings 4 года назад

See "show more" above. I wrote a complete "how to" in the link.

@adamwright9406 4 года назад

Is there any chance I can private message the person who did this video and link, I'm struggling

@vwthings 4 года назад

Why you struggling Adam?

@adamwright9406 4 года назад

@@vwthings I used the white wire as the earth on the earthing crown, is this correct? After Great effort of investigating I discovered that the 12v red black has been left loose near the battery

@Camp_Runamuck 6 лет назад

Could you post the links of parts from eBay or amazon I’ll need

@vwthings 6 лет назад

DC 9V-60V 20A Pulse Width Modulator PWM Motor Speed Control Switch Controller uk on the bay - under 7 quid :) Listings change but has to be at least 20amp and controller on a flylead.

@mikebeaumont137 4 года назад

Sorry there seems to be some confusion. 1) I asked you where you bought the small switch for the control and 2 ) where one wires it into the arduino. It would be a great help as I have the arduino but no switch or wiring diagrams. Thanks for replying before. Mike

@vwthings 4 года назад

Never mentioned an Arduino :)

@jackyc7672 8 лет назад

hello, do it work on the AC blower motor? what kind of the DC moter do you use for the replacement ?thanks

@vwthings 8 лет назад

It works on DC only. I used the same blower motor (12v)

@jackyc7672 8 лет назад

+jackbox thank you for the kind reply. AC ,here,means air conditioning.I have two blowers on rear ceiling of the van. Did the 12v motor you used is old one from vw or you buy a new 12v from aftermarket?

@vwthings 8 лет назад

Old one. In that case you just need to make sure the controller you choose exceeds the amps being used for your blowers :) If you're not sure, you can buy a cheap watt meter on ebay that would tell you this.

@jackyc7672 8 лет назад

+jackbox thanks for your reply...I will try it out.

@jackyc7672 8 лет назад

it has two blowers 20A for each. What would be your suggestion using 50A PMW controller for twol or two 25A for each? I guess usign a watt meter is better for monitor. Thanks a lot