BoilerFaultCodes 02. High
Your boiler has failed to light the flame after repeated attempts to start up.
Call an engineer soon
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: No flame or no ionisation (after 3 starts). a. no ignition spark (check connection of ignition cable, spark plug cap, electrode for breakdown, and distance 3-4 mm). b. ignition spark, but no flame (check gas cock, gas pressure, gas pipe venting, gas valve, and gas/air ratio). c. flame, but no ionisation.
Typical repair cost £150-350 (including labour)
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Search the official register for a qualified engineer in your area.
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A boiler cover plan would cover faults like 02. — no call-out fees, no surprises.
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Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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