Pressure switch not turning off booster pump

[Tamberav]

With pressure seeming to be really poor this winter I installed a booster pump...a pressure switch...and a RODI flood guardian that uses a solenoid.

When the flood guardian triggers the pump keeps running even though my pressure gage reads 0.

I have the solenoid after the carbon but before the RO.

I have the booster pump after the solenoid but before the RO.

I have the pressure switch after the RO but before the DI because I have a valve to make both RO water and DI water.

I have seen videos set up many different ways...what am I doing wrong?

 

[ca1ore]

I believe high pressure activates the switch.

 

[Tamberav]

Noticed my setup didn't come with check valve installed before the ASO...maybe that? I emailed spectrapure.