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Aqua Clarus Troubleshooting Guide

Something not working as it should?

An alarm, unusual smell or loss of water pressure can mean something needs attention. This guide helps you recognise common problems, take the first safe steps and give your service technician the details they need. Follow the fault instructions supplied with your system and never bypass a safety control.

First steps

What have you noticed?

Common symptoms and first actions
What you notice	What to do
Audible or visual alarm	Note the indicator or message and when it started. Follow the supplied instructions for stopping reuse or using backup water, then contact your service provider. Do not keep resetting the alarm.
M800sx UV alarm or pump-float fault	The treatment cabinet stops discharging. Follow the instructions for external storage and the separate reuse pump too; that pump may still run independently. Do not bypass the protection.
Primary-buffer high level or abnormal process return	Reduce incoming greywater where practical and follow the safe-stop instructions. Contact your service provider. Keep the planned overflow available and do not block or move a return pipe.
Leak, overflow or water on the ground	Keep people and animals clear and follow the safe-stop instructions. Use only the planned wastewater arrangements, never a stormwater connection.
Cloudy water, visible solids, odour or failed sample	Stop the affected reuse supply as shown at handover and arrange an assessment. Appearance and a running pump do not prove the water is suitable.
No pressure, short-cycling pump or empty storage	Use the installed backup supply and report the pump symptoms and tank level. Do not use a temporary hose from a drinking-water supply.
Chemical spill or unsuitable discharge	Note the substance, amount if known, affected fixture and time. Prevent further inflow of the substance, contact your provider and follow the fault plan. Do not add a second chemical to counteract it.
Power interruption or tripped protection	Note how long power was lost and reduce inflow if transfer is unavailable. Keep clear of wet electrical equipment and do not repeatedly reset protection.
Flooding, electrical damage, smoke or fire	Keep clear. Call 111 for immediate danger. The equipment needs qualified assessment before it is returned to use.

Before you call

Help the technician understand the problem

Have the site address, model and serial number, alarm details and last service report ready. Explain when the change began and mention recent servicing, power interruptions or changes in water use and cleaning products.

Say whether water is still entering the collection tank and whether the reuse supply has stopped. Safe photographs of the outside can help. Do not open equipment just to take a photograph.

Returning to use

Resolve the cause before restarting

Your service provider checks the fault, completes the repair and assesses both treatment operation and stored water. Follow their directions about when reuse can resume and whether any testing or follow-up work is needed.

A cleared alarm is not the same as a completed repair. Use the restart checks for your installed system. Larger plants may have different alarms and controls from the M800sx.

Keep a record

Note what happened and what was done

Record the problem, actions taken, service findings, parts changed and any test results. Include who confirmed that reuse could resume, any remaining restrictions and the next action due.

See Maintenance & Servicing for the service record and Startup and Handover for planned absences and restarting.

For an active fault, use the service contact recorded at handover. WCTNZ® can help with product information and the records for your system.

Contact WCTNZ® or call 0800 022 027.

Aqua Clarus Troubleshooting Guide

Something not working as it should?

What have you noticed?

Help the technician understand the problem

Resolve the cause before restarting

Note what happened and what was done

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