Ferroli Short Cycling / Premature Shutdown

Ferroli furnace starts then shuts down after a few seconds without showing a specific error code.

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 furnace relative to system, Faulty room thermostat placement, Poor water circulation, Partially blocked Ferroli heat exchanger

Safety: Short cycling can reduce component life but is not usually an immediate hazard.

Steps:

Check thermostat location: Ensure the room thermostat is not near a heat source or in a draught.
Verify radiator valves: Make sure enough radiators are open to absorb the heat output.
Bleed system: Remove air to improve circulation.

Professional help: System balancing, pump adjustment, and heat exchanger inspection should be done by a technician.

Medium 3/5

Primary Heat Exchanger

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