According to your Profile, you have a 2011 3400RL (adding this to your signature would help in the future). The 2011's didn't come stock with an inverter so the things that run on DC power when shore power is removed are battery powered and include (most) lights, jacks, slides, bathroom and fantastic fan, water pump, etc. If these are not working, then the ost common cause is the Disconnect Switch in the convenience center. If the Red Key can be removed the battery is disconnected and no 12V is flowing from the battery to the coach. Most likely the battery is dead as the converter running on shore power can't charge the battery if the Red Key is removable (i.e. disconnected).
It is also possible one of your 40/50 amp self-resetting circuit breakers are bad and not letting 12V pass. The same dead battery condition will result.
Here is some of the same information from a previous post on this type of problem.
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Here is some info from a previous discussion of a similar problem.
The 12V flow from the converter to the batteries is pretty straight forward. As others have pointed out, here are the places to look. All connections should have 13.5 +/- Volts if the converter is working.
- The converter is part of the power distribution panel -Ensure the CB for it is On
- There are Reverse Polarity Fuses on the converter which protect against connecting a battery backwards. - Ensure they are not blown.
- Check the output voltage at the converter. - it should be in the 13.5V DC range.
- The power then runs to the Disconnect Switch in the Convenience Center. - Ensure the Red Key is in the position where it can *NOT* be removed. If removed, this interrupts the power charging the battery. The Disconnect Switch is not know to fail, but you can remove it to check there is power in and out of it just to be sure.
- The power next flows to the group of 50 amp self-resetting CBs behind the battery. We all know about the one that hiccups and interrupts the hydraulic system. That one also passes power to/from the converter and batteries. You want to check it and it's brother (it is in the current flow to the battery) to ensure there is 13.5V on *EACH* side of the CB.
- The last connection is the one from the 50 amp CBs to the batteries. Ensure you have clean connections and the cables are not corroded (watch out for internal corrosion under the shrink wrap).
Somewhere along this path there will be the problem. A simple VOM should find it. I hope this helps.
The full blown discussion is
*Here* The most common causes are :
o - the Battery Disconnect Switch in the convenience center is in the wrong position (the Red Key should be in the position where it can't be removed)
o - The red plastic covered self resetting 50 amp circuit breakers behind the battery have failed.
Linear Mode
