Ideal F2 Fault Code (Logic Combi)

Safety disclaimer

Fault code summary

Manufacturer

Ideal

Fault code

F2

Fault type

Flame failure, Gas supply

Severity

high

Reset

Not specified

Applicable models

Logic Combi 24, Logic Combi 30, Logic Combi 35

Quick answer

Flame loss.

What does this fault code mean?

Flame loss.

Common causes

• Gas supply may be unavailable; Ideal directs the user to check whether other gas appliances work and whether the meter supply is on.

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; check prepayment credit if relevant.

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 Combi 24
• Logic Combi 30
• Logic Combi 35

Related fault codes

• F1 — Logic Combi

  Low water pressure.

  Read fault code
• F3 — Logic Combi

  Fan fault.

  Read fault code
• F4 — Logic Combi

  Flow thermistor fault.

  Read fault code
• L4 — Logic Combi

  Flow thermistor fault.

  Read fault code

Manufacturer documentation

‘F2’ on Your Ideal Logic Combi — Flame Loss — check any other gas appliances ... whether the gas supply is turned on at the meter.

Last verified

2026-09-12

Frequently asked questions