Ferroli Appliance Repair in St Loyes

What does error F66 mean on a Ferroli boiler?

Error F66 on a Ferroli boiler means the firmware has not loaded successfully, typically after a software update or PCB replacement. Contact a Gas Safe registered engineer or Ferroli technical support - the boiler may need reprogramming using diagnostic equipment.

What does error FH mean on a Ferroli boiler?

Error FH on a Ferroli boiler indicates either a flame detection problem or water flow issue. Contact a Gas Safe registered engineer - if the electrode is faulty it is relatively inexpensive to replace, but if the PCB is the cause, repair costs will be higher.

What does error F10 mean on a Ferroli boiler?

Error F10 on a Ferroli boiler indicates a flow temperature sensor error - the sensor is damaged or its wiring is shorted or disconnected. Contact a Gas Safe registered engineer for sensor and wiring inspection.

What does error A37 mean on a Ferroli boiler?

Error A37 on a Ferroli boiler indicates water pressure loss in the heating system. Check the pressure gauge (should read 1.0-1.5 bar), look for visible leaks, and repressurise using the filling loop if needed. If pressure keeps dropping, contact a qualified engineer to find and repair any leaks.

What does error F21 mean on a Ferroli boiler?

Error F21 on a Ferroli boiler indicates flame loss during operation or insufficient pressure. Check that the gas supply is on and the ignition electrode is clean. Ensure the system pressure is between 1.0 and 1.5 bar. If the fault persists, contact a Gas Safe registered engineer.

Are Ferroli boilers energy efficient?

Modern Ferroli condensing boilers achieve efficiency ratings of over 90% and carry ErP A ratings for energy efficiency. The Modena HE range is endorsed by the Energy Saving Trust.

Why are my radiators cold at the top?

Radiators that are cold at the top but warm at the bottom typically have trapped air in the system. This is easily fixed by bleeding the radiators using a radiator key. Insert the bleed key into the valve at the top corner of the radiator and turn anticlockwise until you hear air escaping, then close once water flows steadily.

Why must the flue outlet be kept clear on my Ferroli boiler?

The flue safely expels combustion gases including carbon monoxide from your home. If the flue outlet becomes blocked by debris, leaves, snow, or bird nests, dangerous gases could build up indoors, and the boiler may shut down with a flue-related error code. Regularly check that the external flue terminal is clear and unobstructed, especially after storms or during autumn when leaves can accumulate.

What does error code A01 mean on my Ferroli boiler?

Error code A01 indicates an ignition failure, meaning the boiler attempted to light but could not establish a flame. Common causes include no gas supply, a faulty gas valve, or problems with the ignition electrode. Check that other gas appliances in your home are working and that your gas meter is functioning. If the problem persists after resetting, contact a Gas Safe registered engineer.

What should I do if I smell gas near my Ferroli boiler?

If you smell gas, do not operate any electrical switches or appliances, do not light any flames, open windows and doors to ventilate if safe to do so, turn off the gas supply at the meter if you can access it safely, leave the property immediately, and call the National Gas Emergency Service from outside the building. Do not re-enter until the property has been checked by a qualified professional.