Error 227 V

Safety precautions:

- If you smell gas (rotten egg smell), do not operate electrical switches or the boiler. Leave the property immediately and call the emergency gas number for your country/provider.

- Isolate the boiler electrically (turn off at the fuse spur) before touching anything external. Do not open the boiler casing or attempt internal electrical or gas work unless you are a Gas Safe registered engineer.

- Use warm water only when thawing condensate pipes; do not use boiling water or open flames.

Initial checks a homeowner can do:

1) Note the exact error code and any indicator lights. If the display shows 227 or EA 227 and the boiler is in lockout, record that and when it happened.

2) Reset the boiler once: on many Worcester Greenstar models press and hold the up and down arrows until the boiler resets, or switch off the fuse spur for 10–20 seconds and switch back on. If the fault clears and the boiler runs normally for a period, monitor it; persistent or repeating faults need engineer attention.

3) Check other gas appliances in the house (hob, oven, gas fire). If none of them work, check your gas meter (prepayment credit, emergency valve) and contact the supplier. A frozen or restricted gas meter/regulator can reduce supply.

4) Check boiler water pressure at the gauge (cold reading normally ~1–1.5 bar). If pressure is very low, top up via the filling loop only if you are confident doing so and consult the manual; low pressure can complicate operation though it’s not the most common cause of 227.

5) Inspect externally for a frozen condensate pipe: find the small white plastic condensate drain that runs to outside. If it is frozen, thaw it using warm water (pour slowly, not boiling) or a warm cloth. After thawing, reset the boiler and see if normal operation resumes.

Specific diagnostic and fix steps you can safely attempt:

1) Reset and observe: After a reset, watch the boiler through the ignition sequence. If it attempts to ignite several times (flashing light) and then locks out again with 227, the problem persists.

2) Thaw condensate and clear blockages: If you thawed the external condensate pipe, also check any accessible internal condensate trap for blockages. Clear only external plastic pipe blockages and the trap if it’s designed for homeowner access; otherwise leave it to an engineer.

3) Confirm gas supply: If other appliances lack gas or you suspect the meter is frozen, contact your gas supplier. If other appliances work normally and the boiler still shows 227, the issue is likely inside the boiler (ignition, sensing, valve, or PCB).

4) Look for obvious leaks or moisture around the boiler. Water ingress onto the PCB can cause intermittent or persistent faults. If you see signs of leakage, switch the boiler off and call an engineer.

What you must not attempt:

- Do not attempt to test, adjust, replace or clean the gas valve, ignition electrode, ignition lead, burner jets, or PCB unless you are a qualified Gas Safe engineer. These are safety-critical components and incorrect work can create a gas or carbon monoxide risk.

- Do not use open flames or tools that may create sparks to try to light the burner.

When to call a professional and what to tell them:

- Call a Gas Safe registered engineer if the fault persists after reset and thawing the condensate pipe, if other gas appliances are unaffected but the boiler won’t ignite, if you suspect ignition electrode/lead, burner jet, gas valve or PCB failure, or if you see water leaks affecting electrical parts.

- When you call, provide: boiler model and serial number, the exact error code (227 or EA 227), what you’ve already tried (reset, thawed condensate, checked other appliances, pressure reading), whether there are any visible leaks, and when the problem started. If possible take a photo of the error display and the condensate pipe outside.

Summary: Try the safe homeowner checks first (reset, thaw condensate, check gas supply and pressure). If those do not clear the fault, do not attempt internal repairs — arrange a visit from a Gas Safe registered engineer to diagnose and replace ignition electrodes, leads, gas valves, jets or the PCB as required.