Brad Kruchten Posted March 11, 2022 Share Posted March 11, 2022 I just Bought a 2005 Monaco Dynasty Diamond IV. It appears the Radiator fan runs all the time. Is there a test Procedure for the module? Or... just pitch it and go with a wax valve? Link to comment Share on other sites More sharing options...
Mark Holt Posted March 11, 2022 Share Posted March 11, 2022 1 hour ago, Brad Kruchten said: I just Bought a 2005 Monaco Dynasty Diamond IV. It appears the Radiator fan runs all the time. Is there a test Procedure for the module? Or... just pitch it and go with a wax valve? Call Source Engineering in Venetia OR. Best thing I ever did was get their fix for your problem. They also have a web site Link to comment Share on other sites More sharing options...
vito.a Posted March 11, 2022 Share Posted March 11, 2022 Unfortunately, the Sauer Danfoss electronic fan controller is a high failure item. To confirm it's failed start the engine cold and make sure the dash A/C is off. If you go back there and the fan is literally roaring wide open, then it's failed. I first started noticing mine was failed when driving slowly down a dirt road and it looks like a tornado behind me. I replaced my original electronic controller with a mechanical wax valve from White House Products in the UK. This is a link to a thread with great info on the fan controller: https://www.irv2.com/forums/f115/fan-stuck-wide-open-376611.html Link to comment Share on other sites More sharing options...
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