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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

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
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

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
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?

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