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Timeking's avatar
Timeking
Explorer
Jul 27, 2023

generator damages AC, other electornics

I have a Champion dual-fuel 3400 gen. I contacted the manufacturer and asked what happens when/if it runs out of fuel. Answer was that both the gen and everything electronic connected could/would be damaged.

Huh?!?

If this is so, I intend to sell the gen and get something that has 'intelligent' shut-down, i.e., if is is going to run out of fuel or turn off because of low oil, shut down the power BEFORE the motor shuts down.

Duh!!

Is any of this nonsense accurate?
  • Honda manual has similar statements about turning off all devices before starting or stopping their generator. But no caution or warning about potential damage.

    Oops. I was 2 minutes too late.
  • My Honda eu2000i inverter generator also says to turn off and unplug all loads before turning it off. It's run out of gas and regularly been turned off without unplugging the loads first with no damage.

    I second this is just nothing more than a CYA from the manufacturer.
  • It is an inverter gen. It even says in the owner's manual "Turn off and unplug all electrical loads. Never start or stop the generator with electrical devices plugged in or turned on."

    It is not possible, or feasible, to check on fuel/oil level when running to make sure stuff doesn't get damaged. It is hard for me to believe that the thing does not (or maybe does) have a 'smart' disconnect feature.

    I posted this because I figure someone had a gen run out of fuel/oil and stop with the AC running ... and can provide assurance that this is all BS.
  • I understood that was true for a generator that used rpm to determine voltage but not true for modern inverter generators.
  • How would anything be damaged? It would be no different than a power outage. Sounds like a CYA response.

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