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    BioSure Professional Troubleshooting Guide

    Check the operating conditions first

    Common checks for water quality, flow, scaling, power and generator condition

    Troubleshooting a BioSure Professional system should start with the exact model and its current operating conditions.

    A symptom that appears to be an equipment fault can also be caused by unsuitable source water, restricted flow, mineral scale, incorrect pressure or a generator component reaching its service interval.

    Low or declining treatment output

     
    • Confirm the source-water TDS or conductivity is suitable for the model.
    • Check water hardness and whether descaling is due.
    • Confirm water temperature is within the operating range.
    • Check operating flow and pressure.
    • Review generator-cartridge or capsule operating hours.
    • Check upstream filtration and the waterline for restrictions.

    Unit does not operate as expected

     
    • Confirm the correct power adaptor and electrical supply are connected.
    • Check installation orientation and water-flow direction where applicable.
    • For flow-activated systems, confirm sufficient water flow is present.
    • Check any display, controller, indicator or service code.
    • Use the model-specific manual before replacing components.

    Scaling or frequent maintenance

     

    Repeated scaling can indicate that hardness, filtration or water chemistry differs from the conditions for which the system was selected.

    Where service intervals become unusually short, check the source-water conditions rather than relying only on repeated cleaning.

    Water-quality concerns

     

    If there is concern about the microbiological or chemical quality of drinking water, WCTNZ® can assist with the BioSure product-side assessment while the water supply and complete treatment system are checked using the appropriate testing process.

    Information to send WCTNZ®

     

    To make support faster, provide the model number, serial number, photographs of the installation, current symptom and approximate operating hours.

    For water systems, include TDS or conductivity, hardness, temperature, filtration, flow and pressure where known.

    WCTNZ® provides New Zealand support for BioSure Professional products supplied through WCTNZ®.

    Copyright © 2026 Waterless Composting Toilets NZ Limited (WCTNZ®). Last reviewed: September 12, 2026.