Ferroli error codes
16 codes that Ferroli publishes for a boiler, each quoted from the maker’s own manual or support page and explained on its appliance’s page. Pick the appliance, or type the code from the display: only Ferroli codes are searched here.
Every Ferroli appliance we cover
| Appliance | Codes | Source |
|---|---|---|
| Ferroli boiler | 16 codes | Ferroli, 1 document |
Ferroli boiler error codes
16 codes from Ferroli. 9 of them are marked for a Gas Safe registered engineer; for the rest the page gives the checks the maker lets an owner do. Tap a code for its meaning:
Gas boiler: do only the checks its user manual gives you — read the pressure gauge, top up through the filling loop, press the reset button, thaw a frozen condensate pipe at ground level. Keep the casing on and leave sealed parts alone. Anything else is for a Gas Safe registered engineer. If you smell gas, call the National Gas Emergency Service on 0800 111 999. Two Ferroli models can use different codes: your model’s manual is the authority.
Sources
Every Ferroli code on this site comes from these pages, published by Ferroli and read on the date shown.
- Ferroli (boiler): Optimax HE Plus 18 OV instructions for use, installation and maintenance (cod. 3540M164, 02/2009): 1.6 faults, 3.4 troubleshooting Checked 2026-09-29.