Not so mystery Rheostat - Defender Source
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Old May 2nd, 2016, 12:47 PM
Yorkie
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Mark Whitehouse
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Not so mystery Rheostat

So I was checking fluid levels on the 90 on Saturday and noticed a Rheostat type switch on the right hand side. Tried turning it to see what happened and the fans came on. So apart from making the fans come on what is the switch for and how should it be used?


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  #2  
Old May 2nd, 2016, 12:59 PM
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John B.
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It is most likely a Kenlowe fan controller. It adjusts the temperature that the fan turn on.

Thermo switch - Accessories for Kenlowe fan kits - Kenlowe fan kits - Cooling system - Tuning, internal and external fixtures - Warehouse - SC Parts Group Ltd
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Old May 2nd, 2016, 01:19 PM
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Now be sure to get it set correctly before over heating...
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Old May 2nd, 2016, 01:44 PM
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Mark Whitehouse
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Originally Posted by rovertrader View Post
Now be sure to get it set correctly before over heating...
How do you set it?
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Old May 3rd, 2016, 02:54 AM
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Originally Posted by Yorkie View Post
How do you set it?
first step is to never turn it ... They are factory set and adjusting it requires sending the vehicle back to kenlowe in the UK.
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Old May 3rd, 2016, 06:15 AM
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first step is to never turn it ... They are factory set and adjusting it requires sending the vehicle back to kenlowe in the UK.
This, or use an infrared temp gun to monitor engine/radiator temp and set accordingly...
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Old May 3rd, 2016, 07:47 AM
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Oh good lord. Wait until you are at normal operating temperature with a nice hot upper house. Adjust until it comes on. Turn a bit until it just turns off.

Should be good. Keep an eye on it.

Don't do any deep wading as it is not waterproof. Their stuff is not the most robust.
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Old May 3rd, 2016, 08:47 AM
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Mark Whitehouse
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Quote:
Originally Posted by Red90 View Post
Oh good lord. Wait until you are at normal operating temperature with a nice hot upper house. Adjust until it comes on. Turn a bit until it just turns off.

Should be good. Keep an eye on it.

Don't do any deep wading as it is not waterproof. Their stuff is not the most robust.
Thanks John I know I'm a PITA being a complete newbie but you have always provided great advice!!
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Old May 3rd, 2016, 08:58 AM
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Thanks John I know I'm a PITA being a complete newbie but you have always provided great advice!!
don't get put off by the hecklers and peanut gallery dwellers ... everyone here was a newbie once and we are all still learning about our vehicles.
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Soapy water / KY jelly, etc. is is basically a must. Yes, good idea to remove trim panels - only takes 5 more minutes to do so.
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Old May 3rd, 2016, 09:44 AM
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One thing that is worth doing, IMO, if you use an electric fan, is to add a light somewhere on the dash that turns on when the fan is running. It is nice to know that it is running or not when you think it should be.

The "Oh good lord." comment was not directed to the OP.
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