Sunseeker House Batteries not charging

Ok, I finally found the manual and it seems that this converter/charger is working normally. The "absorb" voltage of 13.6 is, according to the manual, normal for this situation. 13.2 volts is the "float" charge and the manual indicated that the charger will probably stay at the absorb level unless there is absolutely no load at all on the batteries. Since the unit is hooked to shore power and the owner is not here (has been gone for a couple of weeks now), the minute amperage draw on the batteries from all the items requiring 12v to stay active (fridge and such), the converter/charger will stay at 13.6v.

So it seems I had no worry after all. Unit is working normally.

Thanks to all for some excellent advice/recommendations.

Ron