A Hawaii generator owner thought switching fuels would be simple after gasoline ran out during an outage.
Instead, they found their Firman dual-fuel unit stayed silent on propane, so they took to Reddit's r/Generator community with their issue. The thread highlighted one detail that could make all the difference for other dual-fuel generator owners.
Here's what to know
In the Reddit thread, the original poster wrote, "This worked great with gas but ran out here on Kauai, so trying to use propane, but it's quiet and doesn't light up to give us zee power. Any advice out there?"
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Users said the problem was likely tied to the regulator attachment that propane operation depends on, especially if it was missing or not powered.
According to multiple replies, the specific generator model the OP has depends on using the supplied regulator, which includes a powered connection beside the propane disconnect.
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The top comment read, "You gotta use the regulator that comes with the unit. It has a powered attachment that plugs in next to the propane disconnect."
Another commenter reinforced that point, saying they owned the same generator. They explained, "This is the answer! I have that same generator. The plug opens the internal valve."
Another commenter added, "I learned during the last power outage that you can't pull start it on propane if the battery is dead because the regulator needs power."
More background
Gasoline and propane do not always work the same way on dual-fuel models. As the thread highlighted, propane use can hinge on having the correct regulator attached and enough battery power for the fuel system to open.
In the same discussion, one user recounted a friend buying multiple Costco units before concluding that defective regulators or switches were the reason earlier returned generators would not run on propane.
If a unit is dual-fuel, owners should confirm that the propane regulator is present, properly connected, and functioning while the battery is charged in order to properly prepare for a blackout.
Where can I learn more?
When a dual-fuel generator stops working in the middle of an outage, it raises a bigger question about how dependable any backup system really is once fuel, batteries, or proprietary parts become the weak point. The stories below look at that problem from a few angles, from generator shortcomings to solar-and-battery setups that can keep the lights on through longer blackouts.
• Homeowners facing winter outages are finding backup solar can deliver power a generator never will.
• A rural homeowner used solar and batteries to ride out a 42-hour blackout fuel-free.
• New portable energy systems now offer resilient backup power without the fuel headaches generators bring.
If you're rethinking your setup after a propane-mode problem, these stories offer a clearer picture of where fuel-based backup can fall short and what other options people are considering.
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