No 12 volt power

[dls1955]

2018 23MRB has no 12 volt power inside trailer. There’s 13.3 volts at front junction box. When I checked at the power converter across black positive and white negative there’s only 2.2 volts. When I disconnect the black and white wires from the converter and check across them I get 13.3 volts. To me that indicates a bad converter. I wasn’t hooked up to shore power so there couldn’t have been a surge. Are these converters known to fail? This is my third trailer and I’ve never had this happen.

[DonaandDon]

Have you checked the reset relay (fancy fuse) out by the battery box?

[dls1955]

The relay and 30 amp fuse both have 13.3 volts and both sides. Jayco is sending out a mobile tech. I’ll let you know what they say. I still go with a bad converter. Jayco has been very good to me in dealing with this.

[havnfun]

Have you checked your 12V disconnect switch? Mine is in the drivers side front storage bin and I accidently turned the red key off while putting hoses away.

Happy RVing,
Jeff

[dls1955]

This trailer didn’t have a disconnect installed. I had to install one on the battery box.

[dls1955]

Fixed it! After giving up on the Dealer (Guaranty Rv Junction City, Oregon) Jayco finally sent out West Coast Custom Coachworks. They found a broken ground bolt in the middle of the Trailer which wiped out the controller. They replaced the controller and fixed the ground. They also replaced a leaking toilet while they were here! These guys are awesome! Our second trailer from Guaranty. Won’t go back again!