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Hi all, I have a 1996 Compas motor home based on a t4, with the 2.5 5 cylinder engine. I think I have a problem with the engine fans not coming on as the temperature gauge gets very close to the red zone esp on sunny days and I never hear the fans coming on.

things I have checked so far are the two 50 amp fuses behind the right side headlight, checked the voltage both side of that all ok. When I take the plug off the temperature switch on the radiator there is no voltage on any of the terminals and I’m sure I have seen on here that there should be voltage there.

any advice on what I can check next? I’m wondering if there could be an issue with the control unit?

any advise gratefully received.
 

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Check the resistor that are mounted underneath the radiator. You might have lost them. One of mine in my VR6 fell off and I had to get a new one. After that I got the fans to run on both speeds.
 
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