Thor Forums

[16ACE27]

Originally Posted by dkoldman

The difference is in what happens when switch is in Store for Thor versus Off for Winnebago.

When the Switch is in Use for Thor and Switch is On for Winnebago they both do the same thing.

But in my coach if Shorepower is connected; and I attempt to put switch to Off; the Winnebago does not allow you to turn Switch Off. It stays On 100% if shore power connected. If I flip the breaker at shorepower or simply unplug the source; then I can turn the Switch to Off in Winnebago or Store for Thor.

The difference is that Thor appears to require you to take an additional step if you have hot shorepower and want the charger to operate... you must make sure the Switch is in Use mode. Why I think it is confusing to the common person (of course if you learn it, or know it; it is not a big deal), but I suspect a lot of people that don't know or remember are thinking they are putting their coach is Storage for extended time. They may have shorepower available, plug it up and then go to that switch and put it in Store mode, which if I follow does not power the charger and thus they return to a dead battery not knowing why because they had it plugged into shorepower. If I have scenario correct, then the Coach I have does not do that.

How do you know you can't disconnect the batteries from the buss when you have 120 VAC from SP or the generator? Have you measured the voltage at the batteries?

Are you relying on a simple LED indication that the DC buss has power>
Are you relying on the battery status indicator on the control panel that actually indicates DC buss voltage?

Run your house batteries down so the voltage at the batteries in under 12.6 VDC when no load is on the DC buss
Disconnect the batteries using your "Battery Disconnect" switch
Plug into shore power and measure the voltage at the batteries again.

If they haven't gone up to over 13 VDC then they are still NOT connected to the DC buss. Connecting them to the DC buss with your "Battery Disconnect" switch will push that voltage up over 13 VDC possibly up to 14 VDC.