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Old 06-28-2010, 07:19 PM   #1
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How to stop converter fan ???

Is there a way I can stop my converter fan from running ?

I use the camper as an extra TV room to watch TV. Most of the time, I'm not using any 12 Volts DC, just running the tV/vcr, and maybe a small (110v) Fan no 12 volts.

Is there a breaker or something I can turn off to keep the fan from running?

The converter is a CS 4500, my camper is a 2002 Sunline #2975.

Any info appreciated.

Happy Camping.
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Old 06-28-2010, 08:53 PM   #2
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On my CS 4500 the 3rd AC breaker from the top is labled "Converter" but I think I found it also turned off one other circuit .... but I don't remember which one it was.
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Old 06-28-2010, 10:53 PM   #3
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Ah, the dreaded American Enterprises fan diseaseÖ.. Mine turned into cement mixer quality sounds once the fans went badÖ. And after enough of the 3:00AM episodes I upgraded to a Progressive Dynamics converter.

Your battery may be charging or the converter is sensing it thinks it needs to charge it and that is forcing the fan on. The fan should stop when no DC at all is being used unless something is wrong with the converter.

Or something else is drawing on the 12 volts and you do not know it. The LP detector is on 12 volts. If you pull each fuse one at a time you will eventually find if there is a draw and which circuit. It will take some time to cool the heat sink but if you have all the fuses pulled and it is still running the fans, it should stop in Iíd say 15 minutes. If it is running for an hour or more and no fuses are in then I would say you do have a converter issue.

If you have a volt meter this is even easier to trouble shoot down what is drawing 12 VDC, like the power antenna or something.

The converter is on the breaker with the wall outlets. Turing that breaker off will shut off the converter and the rest of the AC on that breaker.

Good luck and hope this helps

John
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Old 06-29-2010, 10:12 AM   #4
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Gene & JohnB

Thanks for the info.

You were correct the 3rd breaker from the top is marked converter.



It also turned off the AC outlet in the TV cabient. The AC outlet on the other side of the camper is still hot. Just ran an ext. cord from the other outlet.

Did try pulling all the DC fuses as well and the fan kept running, not sure if I have the battery connected or not. May have somekind of issue with the fan running ??

But my problem is solved for now.

Thanks
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Old 06-29-2010, 11:33 AM   #5
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Originally Posted by Sunline1 View Post
Did try pulling all the DC fuses as well and the fan kept running, not sure if I have the battery connected or not. May have somekind of issue with the fan running ??

But my problem is solved for now.

Thanks
If you pulled out the 2 large fuses on top of the fuse strip, (mine are 30 amps each, your may be 25 amp) then the battery should also be unhooked from the 12 VDC convertor system.

If after 15 to 30 minutes the fans are still running and no fuses, well... that is not normal unless it is extremly hot in your camper. And this may be the failure mode of the fans. Something on the convertor control board stops working right in the cooling section. The fans then run 100% non stop when ever the system is plugged in to shore power regardless if needed.

Then over time the fans just plain wear out from over use. The camper owner does not realize anything is wrong as everything works. That is until the fans bearings wear out and then it sounds like a cement mixer at O dark thirty....

Hope your lasts a good long time. It will let you know when the time has come....

John
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Old 06-29-2010, 02:52 PM   #6
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John

I didn't pull the 25 or 30 amp fuses you mentioned.

On my converter their actually "behind" the metal panel you see when you flip down the brown cover. I know that because while my camper was still under warranty those fuses blew, after plugging in to shore power with a "Dead" battery. I left my camper battery connected for about 2 weeks without being plugged in, didn't knkow it would flatten the battery at the time. Then I was told to turn on a few lights next time I plug in if the battery is very low. I haven't had a problem since, with the fuses.

Actually when I pulled the DC fuses that are readily accessable with out removing the metal, I left them out for about 5 min, and the fan kept running. Although when I turned off the AC Converter breaker the fan stopped immediatley.

Maybe will remove the bigger fuses behind the panel tomorrow, and see what happens.

Thanks again
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Old 06-29-2010, 10:00 PM   #7
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John

I didn't pull the 25 or 30 amp fuses you mentioned.


Maybe will remove the bigger fuses behind the panel tomorrow, and see what happens.

Thanks again
Well then you may still be charging the battery. Good luck and report back. We too are learning with you

John
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Old 06-30-2010, 07:45 AM   #8
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John

Went out this morning, and checked and I had the Battery disconnected. I have a shut off on the battery terminal.

I'm assuming that's the same as pulling the 30 amp fuses you refered to ??

Also I turned on the converter this morning, to turn a light on and the converter fan didn't run at all for about 45 minutes I had the converter and light turned on. It's really cool here in North Eastern Pa this monring 50 on my back porch.

So evidently some thing is working some what correctly in the fan circuit.

Any thoughts ???
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Old 06-30-2010, 09:50 PM   #9
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John

Went out this morning, and checked and I had the Battery disconnected. I have a shut off on the battery terminal.

I'm assuming that's the same as pulling the 30 amp fuses you refered to ??

Also I turned on the converter this morning, to turn a light on and the converter fan didn't run at all for about 45 minutes I had the converter and light turned on. It's really cool here in North Eastern Pa this monring 50 on my back porch.

So evidently some thing is working some what correctly in the fan circuit.

Any thoughts ???
Well if the battery is dissconnect then that will create the same effect as pulling the 2 large fuses on top of the fuse strip.

Now it turned on after ~ 45' of use. Well OK it has some level of working. The next generation CS6000XL or CS4500XL series had an overhauled fan circuit in them that added varible speed to the fans. I had one in my 2004 T2499 and that one worked very well. Never knew it had a fan.

So at this point, continue to enjoy the life the convertor has left in it.

John
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