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Electric fan thermostat switch
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Sid



Joined: 20 Sep 2017
Posts: 76
Location: From whence cometh the mighty Lagonda

PostPosted: Mon Aug 24, 2020 11:14 pm    Post subject: Electric fan thermostat switch Reply with quote

My V8 Pilot had an electric fan fitted by a previous owner, but is operated by a toggle switch on the dash. Ideally I would like a thermostat switch to operate it automatically, and possibly retain the manual switch.
Has anyone done this on their classic, and if so can they point me to a decent quality one?
Thanks in advance.
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consul 57



Joined: 09 Nov 2017
Posts: 487
Location: somerset

PostPosted: Tue Aug 25, 2020 9:28 am    Post subject: Reply with quote

i got one from ebay a complete set with a radiator probe, easy to fit and works fine once you decide on when the fan should come on.
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ukdave2002



Joined: 23 Nov 2007
Posts: 4104
Location: South Cheshire

PostPosted: Tue Aug 25, 2020 5:03 pm    Post subject: Reply with quote

just wire the stat and dash switch in parallel, then you can let the stat do its job but override to switch on if necessary.

Dabve
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Ray White



Joined: 02 Dec 2014
Posts: 6304
Location: Derby

PostPosted: Tue Aug 25, 2020 5:36 pm    Post subject: Reply with quote

ukdave2002 wrote:
just wire the stat and dash switch in parallel, then you can let the stat do its job but override to switch on if necessary.

Dabve


Isn't he saying he doesn't have a thermostat with his fan - only a manual switch?

The Aeroline electric fan I bought from bbclassiccars came with a thermostat.

https://www.ebay.co.uk/itm/9-80w-Aeroline-Electric-Radiator-12v-Cooling-Fan-With-Thermostat-UNIVERSAL/151054632194?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
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Sid



Joined: 20 Sep 2017
Posts: 76
Location: From whence cometh the mighty Lagonda

PostPosted: Tue Aug 25, 2020 6:15 pm    Post subject: Reply with quote

Yes Ray, I've inherited the fan, but it operates manually only. I was just asking if anyone can recommend a reliable stat operated switch. Most appear to be made in China and look a bit cheap and nasty.
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alastairq



Joined: 14 Oct 2016
Posts: 1950
Location: East Yorkshire

PostPosted: Tue Aug 25, 2020 6:31 pm    Post subject: Reply with quote

https://www.holden.co.uk/c/electrical/heaters_electrical_fans/electric_fans/page/2

They sell the ''Revotec'' fan switches..
These consist of a length of aluminium tube/pipe, which is inserted into the top hose [with clamps.]
They sell various diameters of pipe to suit.
The prices are also aimed at the well-heeled ''classic car owner'', who must have cash to spare?

Also available at various other go-faster specialists..who might be cheaper?
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Ray White



Joined: 02 Dec 2014
Posts: 6304
Location: Derby

PostPosted: Tue Aug 25, 2020 7:00 pm    Post subject: Reply with quote

Sid wrote:
Yes Ray, I've inherited the fan, but it operates manually only. I was just asking if anyone can recommend a reliable stat operated switch. Most appear to be made in China and look a bit cheap and nasty.


That's right, Sid. The one I have is pretty cheap and nasty. Before Covid did for my business I would have probably have gone for one of those that Alastair says are for the well heeled....

I think my "well heeled" days are gone so I shall have to put up with a lot more cheap and nasty stuff before my time is up. Crying or Very sad

Still, I try to put a brave face on it with sayings like "worse things happen at sea!"
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Sid



Joined: 20 Sep 2017
Posts: 76
Location: From whence cometh the mighty Lagonda

PostPosted: Wed Aug 26, 2020 6:45 am    Post subject: Reply with quote

Well I'm certainly not a well healed classic car owner, or well healed anything come to that. Maybe I'll carry on looking at the bargain basement end of the market, I certainly can't justify over £60 just for a switch.
I'm just not happy buying anything with "Made in China" on it at the moment.
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ukdave2002



Joined: 23 Nov 2007
Posts: 4104
Location: South Cheshire

PostPosted: Wed Aug 26, 2020 7:38 am    Post subject: Reply with quote

A good quality (Honeywell) fixed temp stat will set you back around £8, a good variable stat around £20

https://uk.rs-online.com/web/c/automation-control-gear/industrial-switches/thermostatic-switches/

Dave
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Penguin45



Joined: 28 Jul 2014
Posts: 381
Location: Padiham

PostPosted: Wed Aug 26, 2020 10:32 am    Post subject: Reply with quote

You should still only use the thermostat to switch a relay to operate the fan.

Chris.
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badhuis



Joined: 20 Aug 2008
Posts: 1390
Location: Netherlands

PostPosted: Wed Aug 26, 2020 11:00 am    Post subject: Reply with quote

ukdave2002 wrote:
A good quality (Honeywell) fixed temp stat will set you back around £8, a good variable stat around £20

https://uk.rs-online.com/web/c/automation-control-gear/industrial-switches/thermostatic-switches/

Interesting, those fixed temp switches. To be mounted against the upper radiator tank I presume.
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Sid



Joined: 20 Sep 2017
Posts: 76
Location: From whence cometh the mighty Lagonda

PostPosted: Thu Aug 27, 2020 7:17 am    Post subject: Reply with quote

badhuis wrote:
ukdave2002 wrote:
A good quality (Honeywell) fixed temp stat will set you back around £8, a good variable stat around £20

https://uk.rs-online.com/web/c/automation-control-gear/industrial-switches/thermostatic-switches/

Interesting, those fixed temp switches. To be mounted against the upper radiator tank I presume.


That looks like the best option for me.
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ukdave2002



Joined: 23 Nov 2007
Posts: 4104
Location: South Cheshire

PostPosted: Thu Aug 27, 2020 2:46 pm    Post subject: Reply with quote

Sid wrote:
badhuis wrote:
ukdave2002 wrote:
A good quality (Honeywell) fixed temp stat will set you back around £8, a good variable stat around £20

https://uk.rs-online.com/web/c/automation-control-gear/industrial-switches/thermostatic-switches/

Interesting, those fixed temp switches. To be mounted against the upper radiator tank I presume.


That looks like the best option for me.
What you commenly see in the automotive industry is that anything electrical has a huge price hike when its sold as an automotive component e.g. a 50p capacitor is repackaged as a £5 condensor (condensor being the old name for a capacitor that the rest of industry moved from 50+ years ago !) similar with these stats.

Dave
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MVPeters



Joined: 28 Aug 2008
Posts: 822
Location: Northern MA, USA

PostPosted: Fri Aug 28, 2020 3:01 am    Post subject: Reply with quote

Vaguely relevant is this simple dual temperature gauge & probes:

https://www.ebay.com/itm/Universal-Car-0-28LED-Dual-Digital-Display-Supercharger-Temperature-Gauge-Meter/362459907547
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