Why did battery go dead while the RV was plugged into 110 power?

limited information generic answer --you need wiring for the rv part not the p30 chassis --notify a rv dealer--rv shop --or online rv forums many of them have help and service manuals for rvs

make sure dissconnect is on

I tidied up the question a bit :>)

You have a regulator / control box issue. You have two systems;

You have a towable trailer. A vehicle battery in it that gets charged as you drive from a cable in the plug. When you stop that battery ceases to charge. No power in. If you use lights or use an inverter to take the 12 volts and turn it into 110 volts to run appliances, the battery is draining until it becomes flat.

So,..... we bring mains power hook up into the equation.

The mains power should run all your mains 110 volt appliances and provide a trickle charge to keep that battery topped up, but the battery is NOT actually being used, just being charged.

So that is the theory, somewhere you have a piece in the jigsaw puzzle that isn't working. You have a controller box that isn't doing what it is supposed to do. I don't know the trailer, you probably need a dealer that does. Fleetwood went bankrupt in 2009.

If you Google

fleetwood prowler electrical schematic diagram

There are wiring diagrams. I see a battery disconnect solenoid, but all of the dot .it Italian and .fr French sites as scam sites. There are also RV Groups that might be more help than me.

This might help

https://axleaddict.com/rvs/RV-Electrical-Tips-and-Reference-Data

Hope the information helps. A short term solution would be a full size batter charger charging your battery overnight after disconnecting it from the negative lead so just the battery is being topped up. You don't need an inverter if you have mains hook up.
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Use a multimeter to check the input AC voltage (110-125VAC), the fuse(s) for the DC out and the voltage (12-13.8VDC). Have the batteries disconnected when doing this and check the battery voltage(s).

If your batteries have low voltage and the output is into correct range, you may have dead cells. This has been my findings on many units, which means battery replacement. Make sure your get a MARINE DEEP CELL or DEEP CYCLE battery, not a regular car battery. Clean out replace the battery terminals well when installing new ones and use the battery terminals grease that it should come with liberally for future corrosion protection.

If your input voltage does not match the voltage coming from the shore power connection, check the continuity of your power cable.

If your input voltage is in the proper range but the output voltage is not, your inverter may be faulty and in need of repair or replacement.

First, I'm not a Coachmen RV Tech. (but most DC to AC inverters are not brand specific.)
* Check inverter fuse (on actual inverter frame). Replace.
* Check DC voltage at inverter. Should be 12 (or 24 VDC) depending on your system battery supply and inverter.
* Check the DC cable connections; crusty, dirty? Cut all power. Remove and clean terminals. Re-connect and check.
* DC okay? Check 110 VAC power at output of inverter. No power? Replace inverter. (possible power spike damaged it or it over heated)
* 110 VAC okay? Check the power panel breakers. If stuck in middle then turn all the way off to reset and turn all the way back on to activate. Check AC power at outlet(s)
* Still no power (at outlet)? Check all outlets. If some still works then there is a problem with the power (wires) distribution. You will need an electrician to trace the wires back to the break in circuit.
* Be safe. check your warranty and call for service.
* Note; your inverter may be on a separate warranty.
Aloha, ukeboy57

find your 110 circuit breakers. reset. if it will not. its blown need replacement, just like a homes breakers. just pull out and replace

Do you have 12v when plugged in or on generator? If you do, then it's likely 1) a fuse or breaker for the converter, or 2) the converter is dead. Is your battery good? Try using taking the battery out and using to crank your car or truck. If that works, look at the fuse or breaker for your converter or your converter may be dead. If the batter doesn't work, do the opposite and put your car/truck battery in your RV and see if your 12v works -- if it doesn't, then check your converter fuse/breaker or it may be dead; if it does, then your battery is terminally (pun) dead.

Probably your converter, which also charges battery when plugged in.

If the unit has a transfer switch that switched between generator and shore power you need to look at that since nothing is working with the unit plugged into shore power. There may also bee a few battery disconnect switches close to the batteries. In that system there should also be a few inline circuit breakers. If they have tripped they will need to be reset. To determine if they have tripped you will need to look at the circuit breaker and see if there is a small black lever hanging down. If there is, slide it back up and it will lock back into place and should restore power. Without actually seeing the coach and the power configuration it is difficult to determine exactly the problem. Hope this helps.

A TRANSDUCER WILL STEP 220 DOWN TO 110 .
I BELIEVE AN INVERTER WILL BOOST IT FROM 110 TO 220 A ALL IN ONE TRANSFORMER WILL WORK