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Have a 10.5 k house generator. The battery went dead. Got…

Customer Question
Have a 10.5 k...

Have a 10.5 k house generator. The battery went dead. Got new battery but the unit will not automatically shut off during weekly run cycle now.

Mechanic's Assistant: What's the brand and model of your generator? How old is it?

Generac #0044560 guessing 10 yrs old, only 165 hrs use

Mechanic's Assistant: How long has this been going on with your Generac generator? What have you tried so far?

Since the battery went dead. Haven't tried anything ,don't know where to start.

Mechanic's Assistant: Is there anything else the Engine Expert should know before I connect you? Rest assured that they'll be able to help you.

I replaced the charger for the battery on the unit

Submitted: 11 months ago.Category: Small Engine
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Answered in 4 hours by:
10/30/2021
Technician: Hank F., Technician replied 11 months ago
Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 18,100
Experience: Certified on Onan and Generac generators
Verified

Hello, my name is ***** ***** I would like to assist you with this.

Could you please provide me with the serial number of the genset, so I can be sure I am looking at the proper schematic?

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Customer reply replied 11 months ago
GeneracI could call but need to set a time . Are there different fees for longer calls?
Technician: Hank F., Technician replied 11 months ago

The phone call request was an automated reply from the system - I did not send it.

At this point, I do not see any benefit in a phone call. It might be beneficial later, but not right now.

If you shut the genset off, and then set the switch to AUTO, does the genset immediately start up, or will it wait until the next exercise time to start?

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Customer reply replied 11 months ago
It takes a few moments then starts and runs fine but doesn't shut off
Customer reply replied 11 months ago
Ok ,the unit did shut off but the house didn't have elect. I turned gen unit off elect.to house came back on.
Technician: Hank F., Technician replied 11 months ago

You're missing the bus here. I'm trying to determine the sequence of events, so I know where to start looking.

If utility power is available, and the genset is in AUTO, it should not start at all. It should only start when utility is lost.

Are you saying that it starts in AUTO (not MANUAL) even if utility power is present?

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Customer reply replied 11 months ago
I've had it off
I put it on automatic
Since it's been off it goes into the weekly run cycle
When it turns off the electric in house is off
Technician: Hank F., Technician replied 11 months ago

That sounds like you have an issue with wire 23 being grounded in the transfer switch.

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Customer reply replied 11 months ago
Don't have scamatics not sure of that
Technician: Hank F., Technician replied 11 months ago

The transfer relay has 2 wires - 194 and 23.

Wire 194 is the 12V positive, wire 23 is the return (ground).

When the unit is in standby, the control board holds wire 23 open from ground, so no transfer occurs.

If wire 23 is grounded, the relay will activate and set the transfer switch to standby.

With wire 23 grounded (either through a short or a bad control board), retransfer back to utility can not occur.

So you either have a short on wire 23 to ground, or your control board is bad.

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Customer reply replied 11 months ago
I'll ck it out and let you know
Thanks
Technician: Hank F., Technician replied 11 months ago

You're welcome.

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Hank F.
Hank F.
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Category: Small Engine
Satisfied Customers: 18,100
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Experience: Certified on Onan and Generac generators

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