The 12 Volt Power in My RV Keeps Going On and Off
by RJ
(Florida)
The 12 Volt Power in My RV Keeps Going On and Off
While docked in an RV park, and running shoreline power, the 12-volt lights, 'fridge panel, gas detectors have been intermittently clicking off and on. I can hear the click just prior to power off, sounds like is coming from the power center under the microwave, but all fuses and breakers appear ok...stays off for a brief minute, then comes back on....in three years full-timing, this is the first time this has happened....
(NOTE: replaced deep cycle battery that had a dead cell a week ago, lights were dimming, and the power tripping started just prior to this)...I have a 2005 Coachmen class c.......thanks
Over 1,500,000 successful roadside rescues—Good Sam RV Emergency Road ServiceANSWER: Hi RJ thanks for submitting your question on our
Ask An RV Question PageBased on your description it sounds like your RV's
Electric Converter/Charger is going out.
When you plug your RV into shore power the RV's Converter basically bypasses your RV's House Batteries and takes over the task of supplying 12 volt power to RV. The Converter will supply power to your 12 volt lights, smoke detector,
rv propane detector, furnace, fridge operating panel, etc. Most converters also charge your RV's house batteries when you are plugged into shore power.
Converters tend to get hot so they are equipped with fans that are controlled by
a thermostat in the converter. The fan will normally cycle on an off to keep the converter at normal operating temperature. The higher the load on the converter the longer the fan will stay on.
Converters also have built-in safety systems that will shut the converter down if there is a voltage or overheating problem in the converter. These safety systems will automatically reset themselves once the power issue is resolved or if the converter has cooled down enough to start operating again.
In your case I am pretty sure that your converter is overheating and shutting itself down. The overheating could be caused by a cooling fan that is no longer operating or blocked or dirty vents on the converter.
If it is the converter itself you will probably have to take it in and have a Certified RV Technician diagnose and repair the problem. Don't be surprised if you end up replacing the Electric Converter.
I hope that this has been helpful to you.
Do you have any suggestions or comments on this topic? You can add them to this page by clicking on the "Click Here To Post Comments" link located near the bottom of this page.
Happy RVing
RVing Al
Join the Good Sam Club Today! The Official RV Community ClubOver 1,500,000 successful roadside rescues. Good Sam Roadside Assistance.