Ferroli Boiler Fault Codes & Common Errors
Has your boiler issued a fault code? Don't worry, this may not be as bad as it seems, a lot of fault codes can be simple to fix and just require a reset as opposed to an engineer visiting your home.
On this page we have compiled for you a list of the Ferroli boiler errors, so you can find out more about the information displayed on your boiler and understand the potential cause.
If you are still not able to fix the issue then one of our expert boiler engineer partners may be able to help you, free of charge. All you have to do is simply fill out the contact form and they will be in touch.
"A" Ferroli Boiler Fault Codes
If your Ferroli boiler is displaying a "A" related boiler fault code then you can find the potential cause and the models affected by it in the table below:
| Fault Code | Potential Cause | Model(s) Affected |
|---|---|---|
| A01 | No burner ignition or burner fails to light | Optimax HE Plus 31C . 38C / DOMIcondens HE 26C |
| A02 | Possible electric fault as present flame signal with burner off | DOMIcondens HE 26C / Optimax HE Plus 31C / 38C |
| A03 | Protection activated from temperature being exceeded | DOMIcondens HE 26C / Optimax HE Plus 31C / 38C |
| A04 | Fume thermostat fault | DOMIcondens HE 26C / Optimax HE Plus 31C |
| A04 | Safety device activated due to fume extraction | Optimax HE Plus 38C |
| A05 | Fault with the fan or fume pressure / fan protection activated | DOMIcondens HE 26C / Optimax HE Plus 31C / 38C |
| A06 | No flame after ignition | DOMIcondens HE 26C / Optimax HE Plus 31C / 38C |
| A09 | Faulty gas valve | DOMIcondens HE 26C |
| A16 | Faulty gas valve | DOMIcondens HE 26C |
| A21 | Fail due to poor combustion | DOMIcondens HE 26C |
| A23 | Within 4 minutes nominal water pressure has not been reached | DOMIcondens HE 26C |
| A24 | 4 filings within 24 hours | DOMIcondens HE 26C |
| A34 | Voltage supply under 170 / 180V | DOMIcondens HE 26C / Optimax HE Plus 31C / 38C |
| A35 | Faulty mains frequency or frequency anomaly | DOMIcondens HE 26C / Optimax HE Plus 31C / 38C |
| A37 | Water pressure incorrect | DOMIcondens HE 26C / Optimax HE Plus 31C / 38C |
| A39 | Fault with external probe | DOMIcondens HE 26C / Optimax HE Plus 31C / 38C |
| A41 | Sensor positioning | DOMIcondens HE 26C / Optimax HE Plus 31C / 38C |
| A43 | Exchange protection activation | DOMIcondens HE 26C |
| A50 | Fault with gas valve | DOMIcondens HE 26C |
| A51 | Fault due to poor combustion | DOMIcondens HE 26C |
| A62 | No communication between electronic controller and gas valve | Optimax HE Plus 31C / 38C |
"F" Ferroli Boiler Fault Codes
In this section you can find a list of the Ferroli boilers "F" fault codes:
| Fault Code | Potential Cause | Model(s) Affected |
|---|---|---|
| F07 | Temperature of fume too high | Optimax HE Plus 31C / 38C |
| F07 | Card parameter | DOMIcondens HE 26C |
| F10 | Delivery sensor 1 fault | DOMIcondens HE 26C / Optimax HE Plus 31C / 38C |
| F11 | DHW or return sensor fault | DOMIcondens HE 26C / Optimax HE Plus 31C / 38C |
| F13 | Sensor fault with fume | Optimax HE Plus 31C / 38C |
| F14 | Delivery sensor 2 fault | DOMIcondens HE 26C / Optimax HE Plus 31C / 38C |
| F15 | Fault with fan | Optimax HE Plus 31C / 38C |
| F20 | Fault with combustion control | DOMIcondens HE 26C |
| F42 | Fault with heating sensor | DOMIcondens HE 26C / Optimax HE Plus 31C / 38C |