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Old 03-06-2013, 09:24 PM   #1
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Variation in lighting (bright to dim)

This has certainly been a topic lately.

I began troubleshooting my fluctuating lighting. I have been reading posts concerning this. However there was one that I felt was closer to my issue, and I can't seem to find it, so...

At the end of the camping season, we experienced a dimming and returning to full power, the main lights that feed from a switch just inside main door in the living room, as well as the independently switched light over the dinette. It is fluctuating from full bright to dim without a/c running, but will do this when the furnace is running. The furnace blower motor will fluctuate in speed when this happens. This occurs in 5 - 10 minute windows. You can hear the fan on the converter kick in. I know that the light over the dinette is a 12volt light, did not see if the others are 12 volt or 115 volt. The battery is an Interstate Batteries SRM-24 with 550 CCA 690 MCA. The battery was also used at the time that we purchased the TT however I have no info on it as there were no removed identifiers from the sticker. When load testing, with the shore power removed as well as the battery completely disconnected, it tested at 12.6 volts.

I am certainly appreciative of all the input. I am planning on looking at my shore power plug when I get home as the next step to ensure that it firmly connected, as well as cleaning all exterior electrical connections as there is quite a bit of oxidation. I have also thought of replacing the crimp connectors that are on a relay on the tongue as there is considerable slack in this harness, as well as replacing the 30 amp Bosch relay as the mounting tab was broken off at the time of purchase (rules out moisture inside the case) and lastly, I am replacing the resettable fuse (circuit breaker) for the slide outs. I believe this is getting weaker, as when we purchased the TT, it would trip every other time we ran the slides, now it trips twice during slide operation. Any other thoughts.

Again, I appreciate all the input. Thank you.
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Old 03-06-2013, 09:28 PM   #2
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Sounds like your converter is over heating shutting down "lights dim" then cooling off and turning back on "lights bright"

If its a wfco brand converter/distribution center then this is most likely the case as the fan that cools it took a nose dive.

In the upper left hand side of this web page there's a "files" section and a troubleshooting guide for wfco converters.

In any case should you find it bad do yourself a favor and replace it with a progressive dynamics.


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Old 03-06-2013, 09:34 PM   #3
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Thanks Turbs, if replacement is warranted, I thought I read somewhere where only a portion of a converter would need replaced, would this be the case? Or entire unit?

Thanks
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Old 03-06-2013, 09:49 PM   #4
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Quote:
Originally Posted by crushor View Post
Thanks Turbs, if replacement is warranted, I thought I read somewhere where only a portion of a converter would need replaced, would this be the case? Or entire unit?

Thanks
I infact just replaced my 55 amp wfco converter with a 70 amp pd with charge wizard .
The pd unit almost exactly fit where the wfco converter was placed.
To get the pd into the wfco case I had to trim one of the case mounting tabs "took 5 minutes.

I'd suggest making sure yours is bad then remove it and take measurements then order the appropriate pd by the fron the wfco dimensions.

If you need help when it gets to that point pm me your number and we'll talk.


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Old 03-06-2013, 09:55 PM   #5
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Thanks, I think I'll take you up on that. First lets have a few warm days and a little less snow on the ground..lol
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Old 03-06-2013, 09:58 PM   #6
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Thanks, I think I'll take you up on that. First lets have a few warm days and a little less snow on the ground..lol
Right!
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