Troubleshooting:
Lack of flow through unit:
Check panel status and program condition.
Check main system isolation valves.
Check circulation pump is running:
Check indicator status on PLC. Visually check rotation through top cover.
Check flow regulating valve is open.
Check actuator positions. (Refer to enclosed drawing)
Report to ENWA.
Control panel:
No green light:
Check power supply. Is the LCD display active?
Check panel status and program condition.
Unit may be in initial stage of backwash. Max duration 2 mins.
Check actuator positions.
Report to ENWA.
Orange light:
Unit is in backwash.
This should continue for 10-15 minutes maximum.
Red light:
Check alarm condition message. Reset if cause is clear and can be safely rectified.
Otherwise:
=> Isolate unit and report to ENWA
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