Ferroli Short Cycling

Water heater frequently cycles on and off with short run times, even with steady hot water demand.

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

Oversized heater for demand, Restricted water flow, Faulty flow sensor causing intermittent signal, Incorrect minimum power setting

Safety: Short cycling can reduce component life; address promptly.

1. Increase flow: Open the hot tap further to increase flow and see if run times lengthen.
2. Clean filters and aerators: Ensure there are no restrictions causing low flow.
3. Flow sensor: Clean or replace the Ferroli flow sensor if it is intermittently losing signal.
4. Technician adjustment: A professional can adjust minimum burner power (where supported) and verify correct modulation.

Medium 3/5

Flow Sensor / Turbine

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