Main error codes
13 codes that Main (Baxi Heating UK) 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 Main codes are searched here.
Every Main appliance we cover
| Appliance | Codes | Source |
|---|---|---|
| Main boiler | 13 codes | Main (Baxi Heating UK), 1 document |
Main boiler error codes
13 codes from Main (Baxi Heating UK). Every one comes with a check 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 Main models can use different codes: your model’s manual is the authority.
Sources
Every Main code on this site comes from these pages, published by Main (Baxi Heating UK) and read on the date shown.
- Main (Baxi Heating UK) (boiler): Main Eco Compact Combi 25–30 user guide: 7.1 error codes, 7.2 fault finding, 6.2.1 re-pressurising the system Checked 2026-09-29.