Forum Discussion

Trailblzrprincs's avatar
Trailblzrprincs
Explorer
Nov 09, 2017

Electrical issues

My 5th wheel (2010 Komfort Trailblazer) won't allow me to run certain electricity components.
For example I will have the propane heat running and if i switch one light on the light and the furnace will start to flicker in and out after about 20 seconds. If i don't have the furnace running i can turn on two or three lights before they begin to dim in and out. It sounds not good. Running items plugged in does not seem to affect anything.
I have tested the volts on my battery they are fine. I have tested the volts on my converter they are 13.6 until i turn too much on then they go down 1 or 2. I have checked my fuses.
Could this mean i need to replace my converter? It is the WFCO Power Center Model WF-8955PEC. Would having it plugged in to 50 amp service affect anything?
Any thoughts are greatly appreciated, thanks.
  • Trailblzrprincs's avatar
    Trailblzrprincs
    Explorer
    Dec 11, 2017
    Thank you all so much for your input!! Very appreciated. I decided to just order and install a new converter and everything works now!
  • aruba5er's avatar
    aruba5er
    Explorer
    Nov 10, 2017
    You need to check voltage at the furnace with it running and when the lights start flickering and check at the convertor under the same conditions. I would bet you have a loose wire. And it could be anywhere. My lights started blinkling and after a couple days they finally quit. Then I was able to find the trouble. A undersized wirenut had fallen off. Took a lot of looking. I would not condem the convertor just yet.
  • Splashers3's avatar
    Splashers3
    Explorer
    Nov 10, 2017
    I agree with ScottG - the dimming (pulsing)of lights was the sign when our WFCO converter died. On mine, it was pretty obvious after I took some measurements. I love my PD with the charge wizard.

    Good Luck.
  • ScottG's avatar
    ScottG
    Nomad
    Nov 09, 2017
    The rhythmic dimming of the lights is a classic sign of a converter dying.
    I would simply measure the voltage at the converter and if its voltage sags with the dimming, it's toast.
  • Artum_Snowbird's avatar
    Artum_Snowbird
    Explorer
    Nov 09, 2017
    Check on your converter right on the positive and negative output. If the voltage stays up there, but drops at the battery terminals, you have a loose wire between the two. In my case, it was the main negative wire on the negative terminal strip on the converter.

    The voltage gets drawn down by a loose connection, it makes it seem just like a load.

    Try connecting a jumper lead to your battery negative, then to the negative strip on the converter. If that fixes it, is is the negative wire. If not, try connecting a jumper lead to your battery positive, then to the positive strip on the converter. If that fixes it, it is the positive wire.

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