2.7 Low

British Gas 2.7 Fault Code

Also written as 27 — same fault.

The British Gas 2.7 fault code means: your boiler is taking a short rest to prevent itself from turning on and off too quickly, which helps protect the internal parts from unnecessary wear and tear.. It appears on 1 British Gas model in our database.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description: Automatic anti-cycle time
Typical repair cost £0 (including labour)

DIY fix possible

Wait for 10-15 minutes for the countdown timer to finishCheck that your room thermostat is set to a temperature higher than the current room temperatureEnsure your radiator valves are open to allow heat to dissipate

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →
Boiler cover options

Avoid the next call-out bill

A cover plan would handle faults like 2.7: no call-out fees, no surprise bills.

Approved partner
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Get a quote →

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

British Gas models that show the 2.7 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

British Gas 2.7 fault code information on this page is sourced and cross-checked against the official British Gas service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026