Question about Hitachi EC25E 5.5 - Horsepower Air Compressor
You need to spray the valve with WD-40 and let it soak a while. Then get on it with a pipe wrench. Home Depot has a new one. You will be able to replace it today. Try getting it out and put in a new one.
Plan B: Adjust the 'pressure switch' down to 140 PSI and maybe you can run that way for a while until you get a new pressure relief valve. Just turn the adjustment down a bit and keep trying it until it holds air.
(the pressure switch controls the air pressure by conttroling where the motor stops and starts)
Posted on Sep 20, 2009
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Posted on Jan 02, 2017
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