Error EA

Safety first:

- If you smell gas, leave the property immediately, do not operate electrical switches, do not use phones inside the building and call the national gas emergency number from a safe location. Inform everyone in the property and shut the gas supply off at the meter only if you can do so safely.

- Do not open the boiler casing or attempt internal repairs unless you are a Gas Safe registered engineer. Working on gas appliances or inside the boiler is dangerous and illegal for an unqualified person.

Initial checks homeowners can do (in this order):

1) Note the exact error code and any flashing light colour/pattern. Write down model and serial number to give to an engineer if needed.

2) Try a proper reset: hold the boiler reset button for about five seconds (or follow your model’s reset procedure using the control buttons). If your boiler has no response try turning it off at the fused spur for 30 seconds and then back on. Do not repeatedly reset more than once or twice if it keeps locking out.

3) Check the gas supply: test another gas appliance (hob, oven, fire) to confirm gas is available. If no other appliance works, check the meter (prepay credit and emergency valve) and contact your gas supplier. If only the boiler is affected, leave it off and call an engineer.

4) Check external condensate pipe: in cold weather this pipe can freeze. Locate the external condensate discharge (usually a small white plastic pipe) and if frozen carefully thaw it with warm (not boiling) water or a warm cloth. Do not use a naked flame. If you can see and reach the short condensate run, clear obvious ice/blockage and try a reset after thawing.

5) Check the flue terminal and air intake area outside for obvious blockages (bird nests, leaves, debris). If you can safely remove external debris, do so. Do not dismantle the flue.

6) Check power and boiler pressure: ensure the boiler has mains power, the fused spur is on and the display is active. Check system pressure at the boiler — if very low, repressurising may be required (follow your user manual) but do not attempt internal repairs.

If the EA fault remains after the above checks:

- Do not attempt internal inspection or component replacement. The likely causes requiring a qualified engineer include: faulty gas valve, failed ignition electrode or ignition lead, faulty flame sensing electrode, blocked pilot/pilot jet (on older designs), blocked heat exchanger or flue gas sensor, failed fan, or a PCB fault.

- Call a Gas Safe registered engineer. When you phone, tell them: boiler model and serial, exact error code (EA and any numbers), whether the blue or red light is flashing and what external checks you have already done (gas supply check, condensate thawed, flue cleared, resets attempted). This helps them diagnose faster.

Additional notes:

- Repeatedly resetting a locked-out boiler is not advised — it can mask an unsafe condition and will not fix faulty gas or ignition hardware.

- Routine servicing by a Gas Safe engineer reduces the chance of this fault recurring (clean electrodes, check gas pressure, check condensate and flue, test sensors and PCB).

- If you are unsure at any stage, or if the fault involves gas or internal components, leave the boiler off and arrange an engineer visit.