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Old 08-09-2016, 07:35 PM   #1
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Volt meter

Anyone with a Fleetwood discovery no why my volt meter reading so high , or where my voltage regulator is located. Thanks

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Old 08-09-2016, 08:14 PM   #2
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How high is it? Is the reading for the chassis or house batteries? Do you get the reading plugged in to shore power (converter/charger) or from the engine running? (alternator)

Most alternators have the voltage regulator built into the housing. On the converter/charger, charging rate is set by the control board in it.

Have you cleaned and checked all battery connections, including ground connections? A bad connection can fool the charging current to go higher, reading low voltage from the batteries.


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Old 08-09-2016, 08:18 PM   #3
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I agree with Bob, a little more info will help a lot. To add to Bob's post, a faulty battery will also cause the alternator to overcharge.
Dennis & Carol
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Old 08-09-2016, 08:46 PM   #4
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Engine alternators output a voltage range of 13.5-14.4. House battery chargers output a voltage range of 13.2 to 14.4, depending on style/model of charger.

Some house battery chargers will output an equalization voltage of over 15V for short periods if the charger has an equalization step programmed into its algorithm.

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Old 08-09-2016, 09:43 PM   #5
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Instead of looking at the LEDs or whatever display the motorhome has, try going to the batteries and measure the voltage on them directly with a digital voltmeter. You can get a decent one at Home Depot or Loews for around $30. If the voltage is over about 14.5V you may have a problem with the charging system.

Do you have solar panels charging in parallel with the shore power charger? That can cause the voltage to be too high and overcharge them.

Have you checked the water level in the batteries recently? How old are the batteries?

If you aren't comfortable troubleshooting it yourself, go to mechanic (not a big or small box auto store) and have them check it out.
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Old 08-10-2016, 12:03 AM   #6
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Hey guys thanks, I just brought this 1999 discovery and noticed all the battery connection where loose and very corroded, I have no ideal how long its been like that. I will do what you guys recommend, it appears some damage may already accrued, possibly to the alternator

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