The solenoid valve of the gas water heater cannot be removed. The screws are too tight and have twisted and slipped.

Is there any solution? The nails are made of steel and twisted into the aluminum alloy.

There is no rust there. I guess it’s because the screwdriver didn’t bite tightly and made it bulge little by little.

Two methods: first use loosening agent. If the conditions are insufficient, you can soak the entire valve in engine oil. Then use a saw blade to cut a straight line on the body and screw it with a flat-blade screwdriver

The second method is to remove the entire valve body after soaking it and use a saw blade to grind the round cap of the screw into a ripple and tighten it with an adjustable wrench

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It is recommended not to chip the aluminum alloy valve body underneath. If the aluminum alloy valve body breaks, the gain will outweigh the loss