I am assuming that you are talking about the overload button on the electric motor. This is a safety device that takes the motor out of the circuit so it does not burn up when it is overloaded. One thing to look for is either wrong voltage being supplied to the unit or the motor could be wired wrong. Some motors are "Dual" voltage, meaning, they can work on 120v or 208-230 v. If this is an old unit, the overload may have lost it's sensitivity. Meaning, it is too sensitivity. Trips out too early when it really does not need to. There could also be a pressure switch that can cause other safety devices to trip. Take a good close look at how the safety devices are used in the circuit.
Answers & Comments
I am assuming that you are talking about the overload button on the electric motor.
This is a safety device that takes the motor out of the circuit so it does not burn up when it is overloaded.
One thing to look for is either wrong voltage being supplied to the unit or the motor could be wired wrong.
Some motors are "Dual" voltage, meaning, they can work on 120v or 208-230 v.
If this is an old unit, the overload may have lost it's sensitivity. Meaning, it is too sensitivity. Trips out too early when it really does not need to.
There could also be a pressure switch that can cause other safety devices to trip. Take a good close look at how the safety devices are used in the circuit.
Good luck