battery boost not working on 96 Mountain Aire

[rockinron]

My battery boost is not working on my 1996 Mountain Aire I can here the solenoid click but no boost. Any suggestions?
Thanks

[GaryKD]

Hi rockinron,
If you hear the solenoid, how do you know the boost is not working? To diagnose if a problem exists:
1. take a VDC reading across the solenoid points that connect the coach batteries to the chassis batteries.
2. Check the coach batteries to make sure they are good enough to provide a boost. The simplest way to do this is take the batteries to your local auto parts store and have them do a load test.

The coach batteries may need to be replaced. The connections may be corroded or loose.

[rockinron]

I know ny engine batteries are good. Explain taking a VDC reading across the solenoid points not sure I understand.
Thanks

[GaryKD]

Hi rockinron,
You're last post mentions the engine batteries. My post referred to the coach batteries.

Also, you did not post how you know the boost button provides no boost. It is important to understand why you feel there is a problem.

VDC = Voltage Direct Current You'll need a volt/ohm meter to take the readings.

The boost button connects the coach and chassis batteries. One must keep the button depressed for it to work. When released the connection between the chassis and coach batteries is broken. The boost button is meant to provide this connection only for short periods of time. The boost button is there to provide extra engine starting power, if needed.

[Iron Man]

I am a little confused if your chassis batteries are good how do you know the battery boost is not working.

[rockinron]

I guess what I should of asked is how to troubleshoot the battry boost on a 1996 Mountian Aire. I can hear the solenoide click when I push the boost button .
Thanks

["007"]

If you scroll down to bottom of this PDF you will see circuit for battery boost between the house and chassis batteries, You may not have the BIRD but diagram may help you.