Tom's Life Bits

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===== Jacuzzi Pressure Switch notes =====

* Pressure switch is normally open without motor running.
  * Pressure switch closes when motor starts.

1.) Locate the Pressure Switch on the back side of the stainless steel Heater Housing. The gray cable
from the switch is connected to J3 (Platinum or Primer/Select) or J9 (Duplex).
2.) Unplug the pressure switch from the circuit board and with a paperclip or pin knife, push out the
two pins from the connector. Clip the leads from an OHM-METER onto these two pins.
3.) With the system "OFF" and no voltage to the Pump/Motor the reading of the OHM-METER should
be on "OPEN". If the meter shows the switch as being "CLOSED" adjust the spoked wheel on the
pressure switch counter-clockwise until an "OPEN" condition is read on the OHM-METER.
4.) Start the Spa operation in a "Filter" mode and check the OHM-METER reading for a "CLOSED"
switch reading. If the reading shows the switch to be in an "OPEN", turn the spoked wheel on the
pressure switch clockwise until the meter reads "CLOSED" plus a little further to allow for a dirty
filter.
5.) Repeat Step #3. The OHM-METER should read "OPEN" with no power to pump/motor. NOTE: Be
sure all these adjustments are done in the low "Filter" mode and not the high-speed "Jet" operation.
The pump/motor connection can be disconnected by unplugging the side motor connector while testing
steps #3 and #4.

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