Originally Posted by Bruce Hultma
May be someone can help!!! I have a 2005 Monaco Imperial and I have a over charging problem with the chassis batteries. The volt gage shows 13 to 14 volts and the Aladdin system show battery status at between 15.9 to 17.0 volts. I killed 2 new bateries driving back to Kansas over the weekend. I replaced all my batteries both the chassis and the deep cell house batteries with new. Started the coach, it work fine. Today the chassis batteries are died. The coach will not start and if I use the boost switch for the deep cells, it starts, but as I release the switch the engine dies. I removed the Alternator, took it to a local shop for testing and it passed all the tests. Any Suggestions?????
I fought the same problem with my 2002 Suncruiser. After replacing the house batts 3 times in 6 years and having numerous "experts" tell me that alternator voltage of 15.3+ volts was OK, I took the beast to a auto electric shop. He took a couple measurements and looked up the alternator in the parts list. It appears there are 2 different alternators for the workhorse.
He discovered that the alternator had a regulator set to 15+ volts and this particular alternator was made for units having a solid state isolator instead of a solenoid switch.
The regulator is replaceable and he ordered the correct one. It was fixed that day and the charging voltage now runs at a safe 13.6 volts. I have been running this one for 2+ years and have had to add water only twice.
Have a "good" auto electric shop check that out.