26 GAL. KOBALT COMPRESSOR GOES TO 50 LBS AND TRIPS RESET...
(CRANSTON, R.I. U.S.A.)
COMPRESSOR RUNS UP TO 50 LBS.AND TRIPS RESET ON MOTOR. I PUSH RESET BUTTON AND IT RESTARTS BUT RUNS ONLY FOR 30 SECONDS TO A MINUTE. I PUSH RESET AGAIN AND IT NOW ONLY RUNS FOR 30 SECONDS AND THE SAGA CONTINUES.IT TAKES ABOUT 20 RESET PUSHES TO GET TO100 LBS. THE UNIT IS A YEAR OLD KOBALT 26 GAL. ELECTRIC COMPRESSOR.
Dennis, it sounds as though your motor is overheating, and going off on thermal overload.
Each time you reset it, the motor likely hasn't cooled enough, and it reaches thermal overload more quickly, and kicks out sooner.
You are doing your motor damage by continuously hitting the reset before the motor has time to cool completely.
The motor is getting too hot because it cannot handle the load being put on it by the back pressure of the air in the tank.
Reasons why this happens are many fold, unfortunately, and there isn't enough info here to try and nail down a specific cause.
If you are using an extension cord, plug the compressor directly into a wall socket and see if that makes a difference.
Dump the air, remove, clean and replace the tank check valve.
Check the capacitor (see page linked from site map) to make sure it's OK.
Any difference in sound when the compressor is running?
Next I would get a load test on the motor.
And then, I would assume a mechanical issue inside the pump, and I tear it down, looking for valve or gasket failures.
I bought this compressor from Lowes a couple years ago so it is out of warranty. This model has digital push button pressure controls. I am not a fan of these but its what I am stuck with. Everything was working fine until today when the tank dropped to about 30 PSI & motor wouldn't start back up. The motor is making a constant clicking noise as if it is trying to start but never will. Any ideas on what could be wrong or how to repair this?
Thanks in advance.
I believe that your digital push button pressure control allows you to set the downstream air pressure setting of the regulator, but does not affect the cut in and cut out pressure setting of the pressure switch that controls the compressor on-off.
If the clicking noise is coming from the pressure switch, then I suspect a switch failure.
You will need to remove the shroud to locate and check this.
The clicking noise might also indicate a start capacitor problem.