226 Low
Your boiler has logged a note that a technician's diagnostic tool was plugged in while viewing the error history, but this itself is not a functional breakdown.
Technical description: Service tool has been connected in the blocking error history menu
Typical repair cost: £0-90 (including labour)
DIY fix possible
Press the 'Reset' button for five seconds to clear the displayMonitor the boiler to see if it resumes normal operationIf the code persists, check if any other fault codes alternate with 226
Protect yourself from future repair bills
A boiler cover plan would cover faults like 226 — no call-out fees, no surprises.
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