Husky air compressor safety valve popping via /r/DIY

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Husky air compressor safety valve popping

I powered on my Husky Air Scout 41004 air compressor for the first time in a few years. Once the pressure builds, the safety valve pops. Then once the pressure builds again, the safety valve pops again, and so on. The instruction manual says there is a pressure switch that is supposed to turn off the motor once the pressure reaches the "cut-out pressure" of 135 psi, before the safety valve can pop, and then turn on the motor once the pressure drops to the "cut-in pressure" of 100 psi.

Does this mean the pressure switch is bad? Obviously it isn't great that the motor runs constantly, but is it dangerous to only rely on the safety valve?

Submitted May 15, 2021 at 07:20PM by kag29
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