Dewalt D55146 type 3 2.5 gal will not shut off
It will not shut off at 180 psi anymore.
Pressure switch switch off/on (auto) selector dial has not been working for a while, would just leave it in the on/auto position then just unplug when done.
Been working a while this way but recently stop shutting off at 180 psi.
I would have to unplug power to get it to stop. It has gotten to 210 psi before I shut down.
While troubleshooting found that one of the hose coupler on the unit was leaking so replaced it, still got issue.
Since had I had a problem with pressure switch I replaced it.
Unit still will not shut off.
Next let all air out of tank then refilled till both pressure gauges showed 150 psi. Left sitting over night for 12-15 hours to see if had a leak any where. Both gauges still had 150 psi (one was showing 146 but felt this was ok).
Was going to spray all lines and fitting with soapy water to see if I had a leak but not sure if I need to now.
Anyway I am stuck as what my next troubleshooting steps should be. Can anyone help me out please?