3P9 Low
Your boiler is notifying you that a scheduled service is due to ensure it continues running safely and efficiently.
Technical description: E-combi oneE-System oneClas Net one CombiClas one CombiClas System one
Typical repair cost: £80-120 (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 3P9 — no call-out fees, no surprises.
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Parts commonly replaced
- None (Standard Service)
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