Planning to Aquamist my 4g63t

[blackrex75]

Hi. This is my first time trying out the WI system. Just bought a second set from a dude and brought it the the workshop to be installed. We tested the motor, relay and cables. The only problem is the pressure switch 806-157 was tested to not be working. They simply conect the 2 terminals to a multimeter and it showed no response. I understand this is a nc type valve. Is it true if there is no data showing on the multimeter means the pressure switch has gone bonkers?

[Richard L]

806-157 is "normally closed".

no pressure = short circuit
pressure = open circult

The switch may need resetting. set the adjustment screw to the furthest out point with out loose it. the switch should be short circuited. If it is not, the switch is faulty. The 1s system has been discontinued three years ago. This switch is no longer available from us. There is an alternative switch from gemsensors. (google)