123
Blown fuse
Verify the pump is getting power. Replace fuse
Faulty output relay
Replace relay board
Faulty digital input
Verify that feed monitoring device is making contact closures using
an ohmmeter. If OK, and connected properly, replace the controller
circuit board.
OUTPUT TIMEOUT
This error condition will stop control. It is caused by the output (either relay or analog) being activated for longer than the programmed
Time Limit.
Possible Cause
Corrective Action
The process went further out of control than normal.
Increase time limit or reset timer.
The chemical supply has run out.
Replenish the chemical supply.
The pump or valve or supply line is faulty.
Repair or replace the control device.
Wrong chemical is being controlled.
Replace with correct chemical.
The sensor is not responding to changes.
Replace sensor. Evaluate mixing or recirculation.
RANGE ALARM
(for sensor inputs)
It indicates that the signal from the sensor is out of the normal range. This error condition will stop control of any output using the
sensor. This prevents controlling based upon a false sensor reading. If the temperature sensor goes into range alarm, then the controller
will go into manual temperature compensation using the Default Temperature setting.
Possible Cause
Corrective Action
Sensor wires shorted
Disconnect short
Faulty sensor
Replace sensor
Faulty controller
Replace or repair controller
EVENT SKIPPED ALARM
An event skipped alarm is set when a second biocide or timer event occurs while one event is still running (either in prebleed, biocide-add
or post-biocide add lockout in the case of the biocide timer mode). An event skipped alarm is also set when the timer relay never turns
on during an event because of an interlock condition. The alarm is cleared when the relay is next activated for any reason (the next
timer event or HAND mode or “activate with” force on condition).
Possible Cause
Corrective Action
Incorrect programming
Reprogram to eliminate overlapping events
Long duration interlock condition
Normal operation
Long duration prebleed
Decrease prebleed time
Increase bleed flow rate
Reprogram to eliminate overlapping events
SENSOR FAULT
This error indicates that the signal from the sensor is no longer valid at all. This error condition will stop control of any output using
the sensor.
Possible Cause
Correction Action
Sensor wires shorted
Disconnect short
Faulty sensor
Replace sensor
Faulty controller
Replace or repair controller
INPUT FAILURE
This alarm indicates that the sensor input circuit is no longer working, or that one of the inputs used to calculate a virtual input is in a
Sensor Fault condition. This error condition will stop control of any output using the input.
Possible Cause
Correction Action
Faulty controller
Replace or repair controller
If using virtual inputs, sensor fault of one of the inputs
See Sensor Fault troubleshooting above
BATTERY POWER LOW
This alarm indicates that the battery which holds the date and time in memory is below 2.4 VDC.
Possible Cause
Correction Action
Faulty battery
Replace battery
