Ideal Logic and Logic Max Repair London — 24, 30, 35kW Specialist

Ideal Logic and Logic Max — Repair and Servicing in London

The Ideal Logic range is the most widely installed Ideal boiler across London and one of the most popular replacement boilers in the city over the past decade. It consistently appears near the top of boiler reliability surveys and its straightforward design makes it one of the most maintenance friendly boilers on the market. The Logic Max is the premium version of the same boiler with a ten year warranty as standard. Your local Ideal specialist at 247 Plumber London repairs, services and installs the Ideal Logic and Logic Max across the whole of London.

Logic and Logic Max Models

Model	Output	Best For	Warranty
Logic Combi 24	24 kW	Flat or 1 to 2 bed house, 1 bathroom	5 years
Logic Combi 30	30 kW	2 to 3 bed house, 1 to 2 bathrooms	5 years
Logic Combi 35	35 kW	3 to 4 bed house, 2 bathrooms	5 years
Logic Max Combi 24	24 kW	Flat or 1 to 2 bed house	10 years
Logic Max Combi 30	30 kW	2 to 3 bed house	10 years
Logic Max Combi 35	35 kW	3 to 4 bed house	10 years

Common Ideal Logic Faults in London

F1 — Low Water Pressure

F1 is the low pressure lockout on the Ideal Logic. The pressure gauge has dropped below the minimum and the boiler has shut down for safety. Locate the filling loop, usually a silver braided hose with two blue valves under the boiler, open both slowly until the gauge reads 1.2 to 1.5 bar, close both and reset the boiler. If pressure keeps dropping, there is a system leak. We locate and repair system leaks as standard.

F2 — Overheat or High Limit Thermostat

F2 on the Ideal Logic indicates the boiler has detected an overtemperature condition. The most common causes in London properties are a pump that is slowing with age and not moving enough water through the heat exchanger, or limescale deposits on the heat exchanger surfaces reducing flow and causing localised overheating. Both are diagnosed and repaired on the first visit in most cases.

F4 — Ignition Failure

F4 means the boiler attempted to ignite and failed within the ignition period. The most common cause is electrode wear. The Logic’s ignition electrode is a straightforward replacement and we carry the correct part for all Logic outputs. A clean and properly gapped electrode resolves F4 faults in the large majority of cases. If the fault persists after electrode replacement, we check gas valve operation and inlet pressure.

Diverter Valve Wear

On Ideal Logic boilers of seven or more years, the diverter valve can wear and start to pass between circuits, causing either poor hot water delivery when the heating is running or the heating running when only hot water is called for. We carry diverter valve assemblies for all Logic outputs. Replacement resolves this cleanly.

Ideal Logic Max — 10 Year Warranty

The Logic Max comes with ten years warranty as standard, making it one of the best value long warranty boilers on the London replacement market. No additional registration process beyond standard installation is required for the ten year warranty, which is a significant advantage over some competitors that require additional steps to unlock their longest warranty periods. We install and service the Logic Max across London, ensuring the warranty conditions are met from day one.