Hi,The converter in my TT is not working and I've used a multimeter to confirm that my shore power is providing 120 VAC. It is a 30 amp system.It appears the burned and corroded wires are the problem from this picture below:Is it worth cutting off the burned/corroded portion of the wires and then reattaching them to the neutral terminal bar, or does it appear the neutral terminal bar needs to be replaced as well? I was going to try to address the wires first inside of the WF-8944PEC converter (3 years old) before attempting to replace the entire converter.Any suggestions would be appreciated. I don't plan to work on this until next weekend.

Wouldn't it better to replace what caused the wires to burn?

Yes, assuming I knew what that was that caused this. I haven't run the Air Conditioner in a while, and I planned to monitor things after I address the wires/converter to see what might be causing the issue, assuming it wasn't loose wires to begin with. I got the converter new with the camper and haven't been monitoring the wire state until the AC power stopped working.

thats the Neutral Buss, the wires on the right nearest the breakers burnedthe heat transfer damaged the ones on the leftwhat/where do those right side burnt neutral wires connect tois that part of the input shore power circuit ?water heater, electric for the fridgeor did they just come loose and cause that heatdid the converter power section behind the panel overheat ? short out ?you are looking at the Neutral power BUSS, not the charge converterwhich is a seperate section that is also connectedand might or might Not be one of the burnt wiresyou need to open up the whole thingto find out what happen and why

thanks for the considerations, will open it up more and focus on the wires on the right to answer the questions. The hot water heater is gas only, so I'm suspecting the fridge, which was on for ~24 hours when the issue first became apparent.

X2 Mr. Wizard!JMHOMeticulously examine every cubic inch of that entire system using a strong flashlight. Aluminum buss bars that have had their tin electroplate burned off are junk. Replace with new. Yes this includes the tin plating inside the wire bore holes as well. The plating has to be perfect.I would take a dozen unit removal images on your camera or phone and repair to a work bench. Do not repair with automotive wire. Use marine or THNN stranded. Color coded just like OEM. Examine the circuit board and components of the charger unit with a fine-tooth comb. You just may catch a burned circuit trace,bulging capacitor or choke winding that has nothing to do with your current problem but will have everything to do with a future problem.Bench test. Leave connected and semi-supervised for several hours, before disconnecting and replacing in the rig. Then test it again. You are looking for heat that is inappropriate or current draw that doesn't fit. Be very suspicious of battery charge voltage regulation until it proves itself over time.After fifty hours of in-service operation, pull the covers and re-tighten all set and binding head screws.

burned wires in converter. Fix wires or replace converter?

24 Replies

Caryite
Explorer
Oct 19, 2015
thanks for the considerations, will open it up more and focus on the wires on the right to answer the questions. The hot water heater is gas only, so I'm suspecting the fridge, which was on for ~24 hours when the issue first became apparent.
MrWizard
Moderator
Oct 19, 2015
thats the Neutral Buss, the wires on the right nearest the breakers burned
the heat transfer damaged the ones on the left

what/where do those right side burnt neutral wires connect to
is that part of the input shore power circuit ?
water heater, electric for the fridge
or did they just come loose and cause that heat
did the converter power section behind the panel overheat ? short out ?
you are looking at the Neutral power BUSS, not the charge converter
which is a seperate section that is also connected
and might or might Not be one of the burnt wires
you need to open up the whole thing
to find out what happen and why
Caryite
Explorer
Oct 19, 2015
Yes, assuming I knew what that was that caused this. I haven't run the Air Conditioner in a while, and I planned to monitor things after I address the wires/converter to see what might be causing the issue, assuming it wasn't loose wires to begin with. I got the converter new with the camper and haven't been monitoring the wire state until the AC power stopped working.
Tom_Barb
Explorer
Oct 19, 2015
Wouldn't it better to replace what caused the wires to burn?

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burned wires in converter. Fix wires or replace converter?

24 Replies

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