Heater blower control

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morningglory
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Heater blower control

Post by morningglory » Mon Nov 24, 2014 1:09 pm

Hi,

I was replacing a heater control bulb and lost the little copper ring for the heat control rheostat. Anyone got any idea where I could get one or how to make one?

If I bridge the two arc-tracks on the PCB, the blower should blow, shouldn't it? I'll try that later.

Also, while I'm here, I might try the heater mod http://www.bxclub.co.uk/forum/viewtopic ... 15&start=0

Does this make the blower operate as normal right until you turn it right up?

Any help much appreciated.

Ta,

Joe
1994 TZD Estate in 'Canal-Boat Green'

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Mothman

Re: Heater blower control

Post by Mothman » Mon Nov 24, 2014 1:47 pm

Good luck with finding another washer, very easy things to lose.
However, if you join up the 2 brown earth wires, the blower should then work. Did this with my TXD 4 years after getting her and it worked just like that.

Andy

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Re: Heater blower control

Post by Defender110 » Mon Nov 24, 2014 2:18 pm

Mothman wrote:Good luck with finding another washer, very easy things to lose.
However, if you join up the 2 brown earth wires, the blower should then work. Did this with my TXD 4 years after getting her and it worked just like that.

Andy
Surely joining the earth wires isn't going to make it work with out the copper contact ring that he has lost as this is what sends the feed through? I tried to make a replacement one out of a bit of fuse wire when I lost one on one of my old TGD's; it worked intermittently for a while but I ended up putting a rocker switch on in the end with all or nothing blower.
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Re: Heater blower control

Post by Tinkley » Mon Nov 24, 2014 7:59 pm

Tricky one, the copper on the PCB is a rheostat and the copper piece in the switch is the contact/speed control. In my case the plastic of the rotating disc with copper piece 'relaxed' a bit over some 13 years so I managed to repressurise the 'spring contact' to get it working again.

If I were to redo it now, I'd either 3D a new part - because I have that as an option or weld on some nylon struts to the plastic piece to hold it horizontal ie beef up the disc to push the contact back wher it was before. You can make a new contact from Beryllium copper, do not be tempted to use Phoshor Bronze as it is nowhere near as good and will not be as reliable. I would be surprised if RS or Farnell do not sell small strips of the Beryllium copper.

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Re: Heater blower control

Post by mat_fenwick » Mon Nov 24, 2014 11:15 pm

morningglory wrote:Does this make the blower operate as normal right until you turn it right up?
That's correct. Might have a spare PCB knocking around so will check. If not I know I definitely have several of one type of contact - the 'dog bone' type supported by two springs. By the sounds of things you have the other type with a springy strip though?
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Re: Heater blower control

Post by Thread Bear » Tue Nov 25, 2014 9:24 am

Is this not a family part for Cit/Pugs of that era? Scrappy time?
Miguel - 16 TRS Auto S, light blue, 43k miles - £450
Pluto - 14 E S, White, 105k Miles - in work
Egbert - 19 16v Gti, White, A/C & Leather, - Keeper
Walt - 17 TZD Turbo S, graphite, 70k miles, good op extras - Keeper
Scraper- 17 TZD Turbo E, blue, 208k miles - parts
Homer - 19 TXD E, Red, 189k miles - £250
Gary - 17 TZD Turbo E, 118k miles - in work

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Re: Heater blower control

Post by Tim Leech » Tue Nov 25, 2014 10:29 am

I may have a spare one somewhere if you struggle.
1963 VW BEETLE 1200
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Re: Heater blower control

Post by Defender110 » Tue Nov 25, 2014 11:14 am

The contact ring you need will be the one shown in the bottom right of this picture I assume? (Eledasson?? type)

Image
Last edited by Defender110 on Tue Nov 25, 2014 11:17 am, edited 1 time in total.
Kevan
1987 Citroen BX MK1 diesel estate.(Currently in dry storage)
1997 Mercedes C230 W202 - daily driver.
2010 BMW X1 SE 2.0D Auto - Her indoors daily driver.
2003 Land Rover Discovery Series 2 Facelift TD5 - Daily driver / hobby days and camping.
1993 Land Rover Discovery 200tdi Series 1 3 door - in need of TLC

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Re: Heater blower control

Post by Defender110 » Tue Nov 25, 2014 11:17 am

This is the other (Chausson) type;

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Kevan
1987 Citroen BX MK1 diesel estate.(Currently in dry storage)
1997 Mercedes C230 W202 - daily driver.
2010 BMW X1 SE 2.0D Auto - Her indoors daily driver.
2003 Land Rover Discovery Series 2 Facelift TD5 - Daily driver / hobby days and camping.
1993 Land Rover Discovery 200tdi Series 1 3 door - in need of TLC

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morningglory
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Re: Heater blower control

Post by morningglory » Tue Nov 25, 2014 12:10 pm

Yes, its like the one in the first picture (Eledasson??).

I've made a ring out of copper wire but its not very springy so may scratch the tracks on the PCB away. Works to de-mist me for the time-being anyway.

Tim - if you've got a spare that would be marvellous. I will pay you money or beer vouchers or something!

Thanks,

Joe
1994 TZD Estate in 'Canal-Boat Green'

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Tim Leech
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1972 Morris Marina 1.8 SDL BFA720L
1979 Rover SD1 3.5 V8-S TSL 982
1980 Morris Marina 1.7HL DBV468W
1985 CITROEN BX 19GT C1TBX
1991 CITROEN BX 19TZI AUTO A/C BXi 19
1994 CITROEN XANTIA 1.8 SXi M908HRY
2002 Rover 75 CDT Connossieur SE Nav Auto R40TSL
2003 Rover 25 1.6i XL L33CHT
x 70

Re: Heater blower control

Post by Tim Leech » Tue Nov 25, 2014 1:48 pm

Ok Joe,

It will be the weekend before I can get to my store and take a look.
1963 VW BEETLE 1200
1985 BX 19GT Mk1
1991 BX 19TZI Auto A/C
1994 Xantia 1.8i SX
1972 Morris Marina 1.8 SDL
1979 Rover SD1 V8-S
1980 Morris Marina 1.7HL
2002 Rover 75 CDTi Connossieur SE AUTO Nav
2003 Rover 25 1.6i XL 5 DR

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morningglory
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Re: Heater blower control

Post by morningglory » Thu Nov 27, 2014 12:36 pm

Thanks but don't worry about it Tim. My homemade version is working fine (better than the original actually which would occasionally drop out). It might fail in time but its OK for now!

Joe
1994 TZD Estate in 'Canal-Boat Green'

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Tim Leech
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My Cars: 1963 VW BEETLE 1200 KGJ413A
1972 Morris Marina 1.8 SDL BFA720L
1979 Rover SD1 3.5 V8-S TSL 982
1980 Morris Marina 1.7HL DBV468W
1985 CITROEN BX 19GT C1TBX
1991 CITROEN BX 19TZI AUTO A/C BXi 19
1994 CITROEN XANTIA 1.8 SXi M908HRY
2002 Rover 75 CDT Connossieur SE Nav Auto R40TSL
2003 Rover 25 1.6i XL L33CHT
x 70

Re: Heater blower control

Post by Tim Leech » Thu Nov 27, 2014 12:39 pm

Okidokey.
1963 VW BEETLE 1200
1985 BX 19GT Mk1
1991 BX 19TZI Auto A/C
1994 Xantia 1.8i SX
1972 Morris Marina 1.8 SDL
1979 Rover SD1 V8-S
1980 Morris Marina 1.7HL
2002 Rover 75 CDTi Connossieur SE AUTO Nav
2003 Rover 25 1.6i XL 5 DR

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x 25

Re: Heater blower control

Post by Defender110 » Thu Nov 27, 2014 5:15 pm

=D> =D>
Kevan
1987 Citroen BX MK1 diesel estate.(Currently in dry storage)
1997 Mercedes C230 W202 - daily driver.
2010 BMW X1 SE 2.0D Auto - Her indoors daily driver.
2003 Land Rover Discovery Series 2 Facelift TD5 - Daily driver / hobby days and camping.
1993 Land Rover Discovery 200tdi Series 1 3 door - in need of TLC