Ideal F2 Fault Code (Logic System)

Safety disclaimer

Fault code summary

Manufacturer

Ideal

Fault code

F2

Fault type

Flame failure, Gas supply

Severity

high

Reset

Not specified

Applicable models

Logic System

Quick answer

Flame loss.

What does this fault code mean?

Flame loss.

Common causes

• Gas supply may be unavailable.

Symptoms

• The boiler displays F2.

What can the homeowner safely check?

• Check whether other gas appliances work.
• Check that the gas supply is on at the meter and that any prepayment meter has credit.

Boiler reset information

Reset information was not provided in the verified manufacturer source. Do not repeatedly reset an unresolved fault.

When should I call an engineer?

Contact a suitably qualified heating engineer when the fault persists, the boiler locks out, or the manufacturer instructions do not resolve it. For gas appliance work in the UK, use a Gas Safe registered engineer.

Engineer diagnosis

• Investigate gas supply and flame detection.

Applicable boiler models

• Logic System

Related fault codes

• F1 — Logic System

  Low water pressure.

  Read fault code
• L2 — Logic System

  Ignition lockout.

  Read fault code

Manufacturer documentation

F2 — Flame Loss — investigate whether other gas appliances in your home are working ... whether or not any gas is being supplied.

Last verified

2026-09-12

Frequently asked questions