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Old 10-07-2019, 09:29 AM   #1
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2002 Dynasty DC voltage low in Front interior

I've been experiencing intermittent low voltage conditions inside the front of my coach.
Primarily for the accessories in the center of the dash where the radio is.
I am powering a KVH control box there and the low voltage alarm sounds more and more often now.
I have good voltage at the house batteries and it starts out OK at the dash but suddenly drops to 10 volts!
It's fine when connected to shore power or with gen power.
After powering down the gen or disconnection shore power, the voltage stays good for sometimes an hour but then drops low again.
It the DC supply switched when plugged in to SP or GEN?
Anyone have any thoughts or experience with this?

Thanks in advance,

Bob
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Old 10-07-2019, 01:16 PM   #2
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Quote:
Originally Posted by europerf View Post
I've been experiencing intermittent low voltage conditions inside the front of my coach.
Primarily for the accessories in the center of the dash where the radio is.
I am powering a KVH control box there and the low voltage alarm sounds more and more often now.
I have good voltage at the house batteries and it starts out OK at the dash but suddenly drops to 10 volts!
It's fine when connected to shore power or with gen power.
After powering down the gen or disconnection shore power, the voltage stays good for sometimes an hour but then drops low again.
It the DC supply switched when plugged in to SP or GEN?
Anyone have any thoughts or experience with this?

Thanks in advance,

Bob
Yes, when you have the SP or Gen running Your Inverter/Charger is running supplying you with DC power to charge the batteries and run everything else.
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Old 10-07-2019, 02:14 PM   #3
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Weak batteries?
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Old 10-10-2019, 07:09 AM   #4
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Hi Bob! Welcome to IRV2! We're sure glad you joined the gang!

I wonder if there is a common ground for the dash area and that it has a poor connection? Maybe someone has a wiring diagram for your rig and can verify that.

Good luck, happy trails, and God bless!
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