t_camper324 Posted February 27, 2021 Share Posted February 27, 2021 We have a 2008 Monaco Signature Noble III with 600 Cummins ISX. Our fan clutch is engaged and the computer says the switch is on, does anyone know where that switch is located and or remedy? Help -working as a street cleaner in the campgrounds! Chuck T Link to comment Share on other sites More sharing options...
Dr4Film Posted February 27, 2021 Share Posted February 27, 2021 AFAIK the "switch" is accomplished with a valve in line with the hydraulic fan motor. Sounds like yours has failed and needs to be replaced. Link to comment Share on other sites More sharing options...
Frank Bergamo Posted February 27, 2021 Share Posted February 27, 2021 It is called a thermo/wax valve. https://www.whitehouseproductsltd.com/products/hydraulic-motors/hyd-gear-motors-fan-valves/dynamatic-fan-drive-motors-valves/553-1-09857-210-thermo On my 07 Marquis it is screwed into radiator inside engine compartment. I have also seen them screwed into metal water transfer tube connecting radiator to engine block. Hope this helps. 1 Link to comment Share on other sites More sharing options...
Bill Morgan Posted February 27, 2021 Share Posted February 27, 2021 http://sourcerv.com/conversion 1 Link to comment Share on other sites More sharing options...
Paul J A Posted February 27, 2021 Share Posted February 27, 2021 http://sourcerv.com/conversion would be my choice as well. Link to comment Share on other sites More sharing options...
Dennis H Posted February 27, 2021 Share Posted February 27, 2021 Maybe you should read your manual..... Ha Ha Just kidding...... From looking at your coach's wiring diagrams, it appears you may have an electric fan clutch. You'll have to get into the engine compartment to verify. If it is, you can add a separate switch to turn it off. I've attached a diagram for your reference. Regardless of which way your coach is done, it appears your FDCA has failed. Personally, I'd change it out as shown from Source Engineering. That said, I'm not excited to have something welded on my coach and two they didn't spell extension correctly and/or proof their diagram. While they are known to be pretty good at what they do, I'm also skeptical when they don't pay attention to simple details....BTW, if your coach had a switch, it would be in the cockpit area with all the other goodies....Dennis Link to comment Share on other sites More sharing options...
Frank Bergamo Posted February 27, 2021 Share Posted February 27, 2021 The diagram above does not show Signature listed in the models the FDCA module was used on. Some of the higher end coach’s did not use the electronic modules. If he has the FDCA setup, then the Source Engineering setup would be the way to go to convert system to hydraulic controlled. If no FDCA module, then the thermo/wax valve replacement is an easy swap out. I bought my replacement thermo/wax valve from Whitehouse Products in the UK for less than half the price of the suppliers in the USA. Shipping very reasonable, received in 5 or 6 days. Hope this helps. Link to comment Share on other sites More sharing options...
t_camper324 Posted February 27, 2021 Author Share Posted February 27, 2021 Thank all who responded, as soon as we can get to our RV, in storage, we will pursue this fix from SourceEngineering. Chuck T Link to comment Share on other sites More sharing options...
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