S13 High
Your boiler is struggling to light properly when you turn on your hot water taps.
Technical description: DHW mode ignition error
Typical repair cost: £100-280 (including labour)
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Protect yourself from future repair bills
A boiler cover plan would cover faults like S13 — no call-out fees, no surprises.
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Parts commonly replaced
- Ignition Lead
- Electrode
- Gas Valve
- PCB
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