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Old 03-24-2019, 12:54 PM   #1
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Battery Boost

I have a W22 Freightliner Chassis under a 2005 Itasca 35U. The battery boost switch (used to start the main engine when it's battery goes low), has not worked for a while. I don't see a fuse or CB for it. Any hints?
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Old 03-24-2019, 01:49 PM   #2
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Those switches operate a solenoid. The solenoid is usuall in an outside electrical compartment near the battery. The solenoid is probably bad.
Hope this helps
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Old 03-24-2019, 09:51 PM   #3
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^^^^ What he said.

Diagnosing requires a multimeter and an operator that can interpret the results.

The meter can be had at NAPA/Home Depot etc etc for $20

The interpreter...... hard to say.
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Old 03-25-2019, 01:11 PM   #4
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Quote:
Originally Posted by oscarvan View Post
^^^^ What he said.

Diagnosing requires a multimeter and an operator that can interpret the results.

The meter can be had at NAPA/Home Depot etc etc for $20

The interpreter...... hard to say.
When you get the meter go to the Solenoid that connects the battery banks and start there, they are notorious to have short lives and they are continuous duty so many only last a few years
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