Quote:
Originally Posted by jeremy5561
I will check today. Is disconnecting the switch supposed to stop the pump? I thought the switch opens when the pressure is high.
|
You thought correctly. The experiment is designed to show whether the code and other hardware are working, and point to the possibility that your pressure switch is faulty.
If connecting the switch makes the compressor run even when the pressure is 120 psi or greater, and disconnecting it makes the compressor stop running, then there's very likely something wrong with the switch (or with the wiring between the switch and its connector).
On the other hand, if the compressor still runs when the switch is disconnected, there is definitely something else wrong.