BoilerFaultCodesYour boiler's burner has encountered a serious ignition or combustion failure, meaning it cannot safely light to provide heat or hot water.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Burner – Propane Aeromatic, Ref. AC 23/05 3585
What causes this fault?
This fault occurs when the boiler attempts to ignite but fails to establish or maintain a stable flame. The most common reasons include a blockage in the burner assembly, a faulty gas valve preventing fuel flow, or worn-out ignition electrodes that can no longer create the required spark.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like E00-737 — no call-out fees, no surprises.
Affiliate links — we may earn a commission at no extra cost to you.
Worcester Bosch 24/28CDi II RSF is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
Affiliate links — we may earn a commission at no extra cost to you.