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Title: The need for a remote fan switch Post by: JohnFol on June 22, 2021, 06:09:18 PM My car had a switch added to the dashboard to allow the driver to turn on the radiator fan. Seems this is a common thing, rather than a previous owner not fixing things properly.
So here is my question. If the automatically operated thermostatic fan switch works correctly, why is a remote manual switch required? Title: Re: The need for a remote fan switch Post by: Nigel on June 22, 2021, 06:32:22 PM Hi John,
If the rad switch is working well, no back-up is needed. However, if it's suspect, or if stop/start traffic on hot days is a regular occurrence, having that dash option could be your get-out-of-jail card. Nigel Title: Re: The need for a remote fan switch Post by: JohnFol on June 22, 2021, 06:44:48 PM This is the UK so regular stops in traffic, but not regular hot days!
Title: Re: The need for a remote fan switch Post by: GerardJPC on June 22, 2021, 07:12:24 PM I think that a switch for the fan is a good idea for city traffic in summer. You can bring the fan on a bit earlier and mitigate the level of heat in the engine bay, which may have knock on effects on the fuelling.
Title: Re: The need for a remote fan switch Post by: WestonE on June 23, 2021, 08:23:42 AM I fit one routinely even though I have ECU and Rad sensor switching. I want the option because stuck in traffic somewhere hot with a fully loaded car is no time to not see the fans kick in.
Eric PS I use rotary switches because they are compact and do not get accidentally knocked on. Title: Re: The need for a remote fan switch Post by: JohnFol on June 23, 2021, 09:14:01 AM Sounds sensible. I might try and find an illuminated rocker switch so I know it's on.
Eric / all, do you also stick a timer on the manual switch so it stays on for a period of time after the ignition goes off? |