Ignition Lockout (After 5 Attempts)
The boiler has failed to ignite after 5 attempts and locked out.
Check condensate pipe for frost before calling an engineer in cold weather.
Step-by-Step Fix Guide
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Step 1
Check gas supply
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Step 2
Check for frozen condensate pipe in cold weather
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Step 3
Reset once
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Step 4
If fault persists, call a Gas Safe engineer
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.