EA 234
FAULT CODE
Worcester Bosch
Flame Not Detected After Start
Medium Severity
DIY Check Possible
The boiler attempted to start but could not detect a flame. Similar to EA 227, this indicates an ignition failure.
Cold Weather Note
Check for frozen condensate pipe in cold weather first.
Step-by-Step Fix Guide
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Step 1
Check gas supply
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Step 2
Check condensate pipe is not frozen in cold weather
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Step 3
Reset once
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Step 4
If the fault persists, call a Gas Safe engineer
Gas Safe Reminder
Work on gas appliances must be carried out by a Gas Safe registered engineer. The steps above cover safe checks a homeowner can perform - any internal component replacement requires a qualified professional. If in doubt, always call an engineer.