Ideal F2 Fault Code (Logic+ Heat)

Safety disclaimer

Fault code summary

Manufacturer

Ideal

Fault code

F2

Fault type

Flame failure, Gas supply

Severity

high

Reset

Not specified

Applicable models

Logic+ Heat 12, Logic+ Heat 15, Logic+ Heat 18, Logic+ Heat 24, Logic+ Heat 30

Quick answer

Flame loss.

What does this fault code mean?

Flame loss.

Common causes

• Ideal directs the user to check whether other gas appliances work and whether gas is supplied.

Symptoms

• The boiler displays F2.

What can the homeowner safely check?

• Check whether other gas appliances are working.
• Check whether the gas supply is on at the meter and whether a 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+ Heat 12
• Logic+ Heat 15
• Logic+ Heat 18
• Logic+ Heat 24
• Logic+ Heat 30

Related fault codes

• L2 — Logic+ Heat

  Ignition lockout.

  Read fault code

Manufacturer documentation

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

Last verified

2026-09-12

Frequently asked questions