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NETWORK VP ISSUE: multiple stations not turning on or stuck on

To power down a Network VP system, flip the circuit breaker on the power supply inside the cabinet to the "Off" position.


  • Check the 24V AC indicators lights on each 8-Station Output Board and on the Pump Common. They should all be illuminated, as shown in Picture 1 below.
  • If none of the lights are on...
    • check the 3.2A fuse on the Power Supply, which provides the 24V AC power to the station outputs.
    • If the 3.2A fuse is good, use a voltmeter to check for 24V AC at the 2-wire connector on the 24V AC Connector Group. See Picture 2 below.
    • If 24V is present here, then the 24V AC Connector Group is at fault and must be replaced.
    • If 24V is not present at the connector, then check for 24V AC at the output connector on the Power Supply.
    • If 24V is present here, then the wiring harness running from the Power Supply and the 24V AC Connector Group is faulty and needs to be replaced.
    • If 24V is not present at the output connector on the Power Supply, the problem lies with the Power Supply itself, and it must be repaired.
  • If all lights are on...
    • Ensure that the “Common” switch at the top of the Pump Common board(s) is in the “Auto” position.
    • Check the Common indicator lights on the Pump Common board(s).
    • If the indicator lights are not on, move components, one at a time, from the nonfunctioning satellite to a known functioning satellite in order to pinpoint which component is causing the problem, as a faulty component will also cause problems in the known functioning satellite. Begin with the Pump Common, and if necessary, continue in order with the Faceplate, 40-Pin Cable, the Power-to-Output Cable connecting to the Pump Common, and the Power Distribution Board. The faulty component must be repaired or replaced