(PSM) Pump Start Missing

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When a Pump Start Missing (PSM) alert occurs, it means that a station identified as the pump start is not detected in the station count.

Possible Causes

A station key has been removed, reducing the total number of stations detected.
The ribbon cable between station input/output boards is loose or defective or the connecting pins are bent.
A station output board has been damaged.

Verify the number of station keys is adequate for the assigned pump start station. Add or replace the station key if necessary.
Make sure that the station identified as the pump start is available to use.
Verify max active stations in SETUP menu. Change accordingly.
Confirm ribbon cables are seated properly.
Use another ribbon cable or unbend the connector pins.

You do not need to do anything to clear this alert. When the issue is resolved, the alert will automatically clear.