Coach battery/Generator

You can get your full manual here, but you have to decided if it was early 2014 or later 2014 based on your VIN;

Winnebago Industries Resources

I lost my house batteries over the winter. Same issues - I could charge all day and when I unplugged they died before I go to the door.

Have you physically checked the water level of the batteries?

You have two Disconnect sw's buy the stairs
One is for the coach battery if off you can't start Gen also your converter which charges your battery is under the refer. My sw has a green light when on!

Kemer, if I read your post correctly, you aren't all that familiar with your own coach. IIRC, you have three wet lead acid batteries and they should be checked for water periodically. You should run your generator at least once a month for 30 minutes or longer and under 1/2 load. So yes you have "WET" batteries and they may well be damaged from loss of water. Your rig could be 4 build years old and if maintained properly should be good for at least that long and probably 6 years if really well cared for.

I'm not a battery guru like some of these guys, I am a battery user and learned the hard way to maintain my batteries.

kemer wrote:

I'm wondering if my coach battery is a "wet" battery and low/out of water.

Also wondering if the generator needs power from the coach battery in order to fire up.

And I'm wondering if any of the OTHER 12 V equipment works when unplugged ??

Do check for an operated disconnect switch.

Yes, the batteries likely are wet.
And the gen starts from the house batteries.

While your at it, check both sets of batteries for water.
And get an inexpensive multi-meter; invaluable tool for an RV owner.

Sounds like your house batteries need replacing. Easy enough to test...get a volt meter and check the voltage without being connected to shore power and with the engine not running. You should optimally be getting somewhere around 12.5V. If you don't have that, then likely your battery is dead or dying. If you do have that, then try to start the genset while checking the voltage. It shouldn't drop to less than maybe 9V while the genset is turning over and then recover when you let go of the starter. If it goes under 6V and doesn't recover, your house batteries are likely dead or dying. Plug in to shore power and then check again....you should be somewhere around 13.5-14.5 if charging.

Again, my bet would be the batteries need replacing.

You don't happen to have the coach batteries 'disconnected' do you? Should have a disconnect switch somewhere, ours is inside the door by the steps. Seems your coach batteries should read something even if they're bad but who knows. Coach batteries should be deep cycle wet cells and do need to be maintained.

When you plugged into shore power your "battery monitor" is just reflecting the power output of the converter - not the true status of the battery. Generators take a lot of battery power to start up - you should consider having your batteries tested - if they test out OK then consider cleaning the battery connections including the ground wires. Many start up the engine before they try and start the generator - that usually puts both the chassis and house batteries on line which provides max battery power.