BoilerFaultCodes.com
rE44 High Lockout

Your boiler is struggling to ignite the gas properly and has locked itself out for safety after several failed attempts.

Call an engineer soon

Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Gas valve error due to opening period without flame – try resetting the boiler.

What causes this fault?

This fault occurs when the boiler's control system attempts to light the gas multiple times but fails to detect a sustained flame. The most common reasons are a faulty gas valve that isn't releasing fuel correctly, or a worn ignition electrode that is unable to produce the spark needed to start the combustion process.

Typical repair cost £120-350 (including labour)

DIY fix possible

Check that your gas emergency control valve is open and you have credit on your gas meterPress and hold the 'R' or 'Reset' button on the boiler control panel for 3 secondsWait for the boiler to complete its restart sequence to see if the flame generates

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 rE44 — no call-out fees, no surprises.

Top rated
OpenFix
Boiler & heating care plans
Get a quote →
Hometree
from £12.95/month
Get a quote →
HomeServe
from £8.00/month
Get a quote →

Affiliate links — we may earn a commission at no extra cost to you.

Could it be time for a new boiler?

If repair costs are adding up, a new energy-efficient boiler could be the smarter long-term choice.

UK's #1 online installer
Boxt
Fixed-price online quotes. Next-day installation.
Get a free quote →
Heatable
Instant online boiler quotes from £1,499.
Get a free quote →
iHeat
Fast installation. Price match guarantee.
Get a free quote →

Affiliate links — we may earn a commission at no extra cost to you.

Related fault codes