Termet High Minimum Flow Threshold

Water heater does not detect water flow unless the tap is opened fully.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Sticky flow turbine in Termet hydraulic block, Partially blocked inlet filter, Worn flow sensor bearings, Incorrect flow sensor calibration

Safety: Close the water supply and relieve pressure before opening the hydraulic block.

Clean inlet filter: Remove and clean the cold water inlet filter screen.
Service flow sensor: Remove the flow sensor/turbine, clean it thoroughly, and ensure it spins freely. Replace if worn.
Check for debris: Flush the inlet piping to remove any debris that could jam the turbine.
Reassemble and test: Refit components, restore water, and test activation at lower flow rates.

Medium 3/5

Flow Sensor / Turbine Assembly

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