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EZDS - Troubleshooting

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Symptom Possible Causes Corrective Action

New Module does not work; station count is incorrect

  • Controller was not reset after module installed.
  • Press Reset button on the back of the control panel.

Station will not run

  • Decoder not programmed or programmed to the wrong station
  • Decoder or solenoid disconnected
  • Bad solenoid
  • Start manual station activation, and verify station is running in the display.
  • Inspect decoder, verify the LED is flashing at one-second rate. If not, check for 24VAC at decoder connection to two-wire path.
  • If light is flashing, decoder is working, check solenoid and connection to wire leads.
  • If necessary, re-program decoder to correct station number.

P/MV will not operate

  • Decoder not programmed as PM/V
  • Wire jumper not installed
  • Re-program decoder with NO stations running.
  • Install jumper wire between EZ-DM PMV terminal, and PMV terminal on controller power module.

Err message in display
Note: When errors occur on the two-wire path, the controller cannot directly identify which station caused a problem (like it can with conventional stations and PMV). Start stations manually to see when the Err occurs.

  • Overload condition in the field
  • Possible short in two-wire path
  • Possible duplicate station numbers; too many solenoids active
  • (Station number shown in Err display may not be correct with EZ-DM installed)
  • The solenoid is damaged, causing a high current draw; check resistance.
  • If error occurs on all stations, check for dead short in two-wire path or PM/V output.
  • Eliminate decoder stations with same number as conventional stations in use.

QuickCheck advances through all zones without results

  • QuickCheck not intended for use with EZ Decoders
  • N/A
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