D.44 Medium
Your boiler's electronic system is struggling to correctly detect the flame signal, which could lead to it locking out for safety.
Technical description: Digitised ionisation – potential error
Typical repair cost: £120-280 (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 D.44 — no call-out fees, no surprises.
*Affiliate links — we may earn a commission at no extra cost to you. Prices shown are starting prices.
Parts commonly replaced
- Ionisation electrode
- Ignition lead
- PCB
*Affiliate links — we may earn a commission at no extra cost to you.