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Positive and negative sides to heater switch

Posted: Sat May 24, 2025 2:32 pm
by MsRose
Hi all

After dismantling my smiths heater from my 1957 and going to put it back together, I’ve realised that I marked up the positive wire to the switch, but the switch itself doesn’t appear to have any indication of positive and negative.

Can anyone advise please?

https://photos.app.goo.gl/7V3DrY8jiFiKWcKd8

Re: Positive and negative sides to heater switch

Posted: Sat May 24, 2025 3:45 pm
by svenedin
It does not matter. The switch is just a break in the circuit. For instance, supply wire to switch, other side of switch to motor, then wire from other terminal of motor to earth.

Re: Positive and negative sides to heater switch

Posted: Sat May 24, 2025 4:07 pm
by Bill_qaz
Stephen is this information from The French Connection in view of your location :lol:

Re: Positive and negative sides to heater switch

Posted: Sat May 24, 2025 4:44 pm
by svenedin
Bill_qaz wrote: Sat May 24, 2025 4:07 pm Stephen is this information from The French Connection in view of your location :lol:
Yes! We are in the Loire Valley sans incident

Re: Positive and negative sides to heater switch

Posted: Sat May 24, 2025 5:13 pm
by Bill_qaz
Well done, all the work paid off :tu1:

Re: Positive and negative sides to heater switch

Posted: Sat May 24, 2025 7:22 pm
by MsRose
svenedin wrote: Sat May 24, 2025 3:45 pm It does not matter. The switch is just a break in the circuit. For instance, supply wire to switch, other side of switch to motor, then wire from other terminal of motor to earth.
Thank you 😊

Re: Positive and negative sides to heater switch

Posted: Sat May 24, 2025 10:18 pm
by svenedin
Bill_qaz wrote: Sat May 24, 2025 5:13 pm Well done, all the work paid off :tu1:
Cheers. Yes 750 km. No motorways. Unleaded 98 easily obtainable. Car did not like it though even with his favourite lead sippin liquor (Tetraboost). A small carb adjustment to the rich side and he ran very well indeed. Thanks for your tips!

Hot. 32 C and he didn’t vaporise fuel although others did. Maybe the Tetraboost or my rising fuel pipe and float heat shields.

Surrey to the Loire on £40 of petrol. Hilarious

Stephen or in France Etienne

Re: Positive and negative sides to heater switch

Posted: Sun May 25, 2025 1:22 pm
by mobylette
Does your accommodation have " French widows affording delightful prospects?" (Hoffnung)

Re: Positive and negative sides to heater switch

Posted: Sun May 25, 2025 3:07 pm
by svenedin
mobylette wrote: Sun May 25, 2025 1:22 pm Does your accommodation have " French widows affording delightful prospects?" (Hoffnung)
Yes indeed. We have a cabin in the woods with a view of a lake.

Re: Positive and negative sides to heater switch

Posted: Tue May 27, 2025 9:52 am
by Mervin
Did you miss the, no doubt intended, missing "n" Stephen? 8)
You are even more lucky if there's a French widow in every room!

Re: Positive and negative sides to heater switch

Posted: Tue May 27, 2025 2:44 pm
by mobylette
"I give personal look to the interior wants of each guests. Here, you shall be well fed-up and agreeably drunk"

See: https://www.proz.com/forum/prozcom%3A_t ... humor.html