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Old 08-22-2018, 01:08 AM   #1
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Join Date: Apr 2018
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Converter cooling fans ?

I have a 2001 T2370 with a Centurion 3000, CS 4500 converter. The cooling fans have stopped working. I have removed the fans and they work on a 12V power supply. With a VoltOhm meter, it shows just over 3 volts on the posts where the fan wiring plugs hook to the circuit board. Has anyone had this problem and is it just time to replace the converter? It is the original and still puts out 13+ volts when hooked to shore power. I can set a desk fan in the floor blowing into the vents and the converter works fine. Without the fan, after a short while, depending on how many 12V lights are on, and without the fans working, the converter clicks off and the lights dim, and then after about 5 minutes, it apparently comes back on because the 12V lights get bright again. Any info appreciated. I tried to find this question in the forums but didn't have any luck. Sorry if it's a duplicate post.

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Old 08-22-2018, 07:18 AM   #2
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I'm not sure if the fans are speed controlled by temp meaning they would be variable speed or on off if so they would be controlled by a electronic circuit. With no fans running it will cook the converter eventually it sounds like the converter is switching off with over heat. I don't remember all the numbers but I believe that was one that had a tendency to burn the floor underneath it. Sounds like a good time to upgrade.

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Old 09-27-2018, 06:24 PM   #3
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I had to replace the converter. It was charging 13.8 but was overheating. Replaced it with a WF8955 which gave me 10 more amps DC. Now if I can find the thermal switch that turns on the fans, I'll see if I can fix it. The 8955 fit the hole perfectly.
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Old 10-01-2018, 07:17 PM   #4
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Sorry late on your post. I had the 2003 model CS-6000 die a fan death. However this may be after Centurion went out of business and I think American Enterprises took over. The fan control on mine just went to toast. Plus it was only a 2 stage converter. Float and standard charge.

I replaced it with a Progressive Dynamics 60 amp unit which has 3 stage charging and a desulfate mode. Very glad I did, it is light years better in performance and with a massive heat sink and variable speed fans that I have yet to ever hear run.

Glad you got your camper back to working with the WAFCO


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