Mayday! I broke it!

vt800c · 02-03-2019, 09:32 PM

in November, I purchased a 2017 four winds class C on the Mercedes sprinter chassis. Is it is stored in an RV lot outside and unplugged for the winter, I figured best to pull the house batteries and put them on a charger. My house batteries were not holding or taking a charge. I knew they were toast. As it's stored outside when I got the new batteries, I started and ran the engine to keep things loose while I put them in. Well things were going well, and I had the first battery in and connected, until sliding the second battery into position, and the hot lead touch ground and sparked. Not too bad, I figured. After all, that's what fuses are for. Well, the chassis works (starts and runs, some lights, radio...) But none of the RV systems work. (Rest panel, 12 volt lights, anything..). I checked the fuses in the back power panel, but as the slide is in, not a lot of working room there. All fuses looked good. Is there a master fuse that I need to find and check? Thanks for any advise.....

Fish and Dear · 02-03-2019, 09:36 PM

Interested to learn what your problem is and how you fix it.

vt800c · 02-03-2019, 09:41 PM

Quote:

Originally Posted by Fish and Dear

Interested to learn what your problem is and how you fix it.

So am I!! I'll let you know...

Beau388 · 02-03-2019, 10:07 PM

There should be a 50 amp fuse in or near the house battery compartment. It protect the feed from the batteries to the power center.

vt800c · 02-03-2019, 10:14 PM

Quote:

Originally Posted by Beau388

There should be a 50 amp fuse in or near the house battery compartment. It protect the feed from the batteries to the power center.

I will look. It would be in by the batteries? Looks like a snake out down there. But thank you.

abjbrtd · 02-03-2019, 10:29 PM

Let's back up a couple steps.

sorry I have to ask

Did you get the battery/ies installed.
Do you have at least 12 DC volts, BUT not more than 14ish at the battery/ies.
Defenitaly not anything close to 24 volts!

vt800c · 02-03-2019, 10:54 PM

Quote:

Originally Posted by abjbrtd

Let's back up a couple steps.

sorry I have to ask

Did you get the battery/ies installed.
Do you have at least 12 DC volts, BUT not more than 14ish at the battery/ies.
Defenitaly not anything close to 24 volts!

Right now, the house batteries are not connected, but many of the coach functions that worked on the chassis batteries are inop. Lights, step, etc.. Batteries are strapped down but the hot lead is not connected yet.

**16ACE27** · 02-03-2019, 10:54 PM

Look for a DC Breaker that looks like this. Should be at the end of your positive batter lead. It may have a different color flag:

vt800c · 02-04-2019, 12:07 AM

Quote:

Originally Posted by Tfryman

Look for a DC Breaker that looks like this. Should be at the end of your positive batter lead. It may have a different color flag:

Thank you! I'll let you know....

bjones3211 · 02-04-2019, 01:17 AM

I am confused don’t the house batteries have to be hooked up for all your lights and steps to work

vt800c · 02-04-2019, 01:28 AM

Quote:

Originally Posted by bjones3211

I am confused don’t the house batteries have to be hooked up for all your lights and steps to work

No. When the engine is running, the 12 volt lights , the power panel and the step all worked.

duncii · 02-09-2019, 09:33 PM

I have the 2017 class c on a sprinter. My switch was next to the 12v fuse panel under the bed. It is a push button. If you search duncii I posted it last summer. I looked everywhere that Thor said look under the chassis near the battery. Got lucky after much frustration.

vt800c · 02-09-2019, 09:41 PM

Quote:

Originally Posted by duncii

I have the 2017 class c on a sprinter. My switch was next to the 12v fuse panel under the bed. It is a push button. If you search duncii I posted it last summer. I looked everywhere that Thor said look under the chassis near the battery. Got lucky after much frustration.

Thanks! Will look!

DogLovers · 02-09-2019, 10:14 PM

If you don't find the issue let me know. I have a 2017 Synergy Sprinter and all the electrical diagrams from Thor for it. If you need them I can fax if you need.

vt800c · 02-09-2019, 10:49 PM

Ok, the only thing near the fuse box under the bed is the CO detector. Which isn't working by the way. I'm hoping when I get the batteries hooked back up the stairs will retract, and I can call it in to figure out where the issue is. Thanks for the suggestion...

ggoguen · 02-10-2019, 01:58 PM

I have a 2013 Daybreak, and the same thing happened to me on my return trip from Maine. In the Battery Control Center, BCC, there is a 50 amp circuit breaker, it's pretty small, gray in color, and on the lower left corner of the BCC, it has a small reset button.

duncii · 02-10-2019, 02:27 PM

Quote:

Originally Posted by vt800c

Ok, the only thing near the fuse box under the bed is the CO detector. Which isn't working by the way. I'm hoping when I get the batteries hooked back up the stairs will retract, and I can call it in to figure out where the issue is. Thanks for the suggestion...

There is a corner flap above above the breaker/fuse box. You have to open/lift that flap. Look inside and to the right of the fuse/breaker box. It is a very small reset. A flashlight will help. If you cannot get the slide out to access the flap. You should be able to gently remove the breaker/fuse panel (power off) and reach around to the rear lower right side of the wood panel. Again I posted a picture of the location.

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