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I accidently backfed my 16kw with normal power.

I accidently backfed my 16kw Guardian Generator with normal power. Now it runs but doesn't generate electricity. How bad did I screw up?

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Could have damaged the avr
was the genny running at the time if so it would havebeen out of phase with the mains frequency

Posted on Apr 04, 2010

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Posted on Jan 02, 2017

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Generator hard to start and sputters like its missing


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Why doesn't it start?


gen sets have to be run at set rpms so that the voltage and cycles are correct for the applications
with the rpms as little as 100 rpms below requirement , the voltage will be down , causing a brown out which burns out electric motors and if the rpms are low the required cycles will also be off which affects electronic equipment
service the gen set and find out why the rpms are not at the set level

Jan 09, 2016 | Generac Guardian Air-Cooled Standby...

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I have a 16kW Generac Guardian Generator with a 200 amp house service RTS panel (installed 2007). Last night the power went out and the generator started but the unit did not switch to use generator


The problem with the repair service is another matter. Emergency generator and it's switch gear are there for emergency purposes. It has to be exercised periodically. The switch gear should have a toggle switch to simulate a power outage. the switch cuts power to the sensor sensing power from the utility company. This tells the switch gear that power was lost, start the engine and switch over to generator power. Run for a period where engine reached running temperature and switch back to stand by to shut down. Do this periodically, and be grateful the event was not a disaster. Think of your back up electrical system as the spare tire of your car and similar equipment and enjoy your investment. Good people brings you happiness, bad people brings you experience !.

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Your control board is faulty. Try to power up the ingnition coil as well as your fuel pump. If this does not get the engine running then you have major engine problems.

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My Guardian 16KW


I have never heard that generators need to be perfectly level to prevent generator damage. It doesn't compute -- auto generators/alternators run at all sorts of angles -- so do motors. And for the damage to occur in 2 hours running doesn't sound right either.

It does sound like the generator itself is not working/generating properly, but I doubt it was caused by the slab.

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That sounds just about right, if the relay contacts get welded together it sometimes takes out the driver on the printed circuit board. As you found out, 12vdc from 23 to 194 makes the transfer switch move to the Generator position, relay not energized makes the ATS move to the Normal position.

You can make a nice test function by installing a 10 amp contact switch in series with either the N1 or N2 terminals. When the switch is open the generator thinks the Normal power has failed.

Regards,
Carl

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Have a 16k propane guardian generator have to manually start and


Is this an RV generator?

If you have to really choke an LP engine but it runs more or less normally once started you need to troubleshoot the demand regulator and the fuel supply lines (look for air leaks). I'd also check the fuel inlet pressure before the demand regulator.

Rate me,
Carl

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