L5
FAULT CODE
Ideal
Too Many Resets
Medium Severity
DIY Check Possible
The boiler has been reset 5 times within 15 minutes and has entered a protective lockout.
Step-by-Step Fix Guide
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Step 1
DO NOT press reset again
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Step 2
Turn the boiler off at the fuse spur or isolator switch on the wall
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Step 3
Wait at least 2 minutes
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Step 4
Turn the power back on
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Step 5
If it faults immediately again, 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.