| Battery Isolator/Boost switch [message #154249] |
Sat, 24 December 2011 07:46  |
MikeT
Messages: 225
Registered: November 2009
Location: Marine City, Michigan
Karma:
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Senior Member |
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Hello again,
77 Royale, No combiner. Both batteries up front with a third in Onan compartment. I understand the boost solenoid will tie the two batteries up front together for an engine jump, etc. Not really sure what the battery isolator does.
I currently only have one battery installed up front in the forward most position. Engine starts no problem. My problem is that the positive cable for the second battery up front, that is not installed, is HOT.
I purchased a new volt meter for Christmas but will not receive until tomorrow from Santa. I can then check if the boost switch is always on indicating a bad solenoid. What do I need to test on the battery isolator to insure that is good?
I would think the second battery positive cable should be COLD since there is no battery installed provided the solenoid and isolator are good. Should I be checking anything else.
How did I know it is Hot! While just hanging there not attached to a battery, the pos cable touched some metal and sparked.
Thanks for your help troubleshooting this.
Mike Thomas
Marine City, MI
77 ex Palm Beach
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