Compressor not building pressure / pressure switch?
I have an oiless campbell hausfeld wl611106 compressor 5.5 hp.
My problem is When I turn on the compressor at the first of the day it will pump up to about 50 pounds then shuts down. After resting it will get another 5 PSI and so on.
If I leave it for awhile it will get more pressure before shutting down again. Would it be the pressure switch? Or heat sensor? There is no heat sensor listed in the parts list. Is it part of the pressure switch?
Hey Jim. How's things in NS? Been a few years since I've been there.
Why don't you have a read of the questions and comments about pressure switches
and the content and questions about compressor won't build pressure?
Could be a pressure switch. Might be a gasket. Lots of info on these pages to help you decide.
Craftsman 125 psi air compressor dumps air too soon.
When you turn it on it will get up to 40 to 65psi and then release the air like it is full.
Howdy, and thanks for writing in.
I am understanding that your compressor "releases the air" at 40-65 PSI out the same place as it used to when the pressure got up to the normal cut-out pressure... 150 PSI or so?
When the compressor reaches normal cut-out pressure, the pressure switch trips off, cutting the power to the motor and stopping the compressor.
At the same time (usually) that same tripping off opens the unloader valve, which dumps the air trapped over the piston. This allows for an easier start next time your pressure switch trips back on.
In your case the unloader valve is opening at a much lower pressure than desired, and that leads me to believe that your pressure switch is tripping the unloader valve prematurely.
That being the case, changing the pressure switch would be your answer.
Before you do that, take your unloader valve apart and put it back together again, making sure that the moving parts in it actually do so. If the unloader valve isn't the problem, your pressure switch is.