Ideal F1, Low water pressure, below 0.5 bar
MEDIUMRepressurise to 1.5 bar. If it drops within a week you have a leak, book a trace, don't just keep topping up.
Same-day repairs for every Ideal model, Logic, Vogue, Evomax and older Icos ranges, by Gas Safe engineers who work on Ideal boilers every day. Fast diagnosis of F1 pressure faults and L2 ignition lockouts, with common parts on the van.
Average reply under 10 minutes. No obligation.
Call 020 3000 0000Ideal Logic is one of the most common combi boilers fitted across London, cost-effective, compact, and everywhere in ex-local-authority stock and buy-to-let flats. The patterns are consistent: F1 low-pressure lockouts (usually a slow leak, sometimes a tired expansion vessel), L2 and L9 ignition failures as electrodes age, and F2 flame-loss faults on units that have run through a decade of London winters.
Ideal parts are stocked at every major London wholesaler, which is why our first-visit fix rate on Ideal is strong. Common electrodes, pressure sensors and diverter cartridges live on the van, so most repairs are a single visit rather than a diagnosis-plus-parts return.
Repressurise to 1.5 bar. If it drops within a week you have a leak, book a trace, don't just keep topping up.
Often gas supply or flue related. Don't keep resetting, book a Gas Safe engineer.
Usually ignition electrodes or the gas valve. Engineer only.
Sludge or a failed thermistor. A power flush plus a magnetic filter usually keeps L9 away for good.
Diagnostic required, often a flow or return sensor, sometimes the PCB.
Showing a different code? Call 020 3000 0000 and read it to us, we'll tell you what it means over the phone, free.
If your Ideal is over 12 years old and facing a major repair, we'll give you honest repair-vs-replace numbers on site, see our new boiler installation options.
Fixed quote before work begins, 12-month workmanship guarantee, genuine or manufacturer-approved parts.
"F1 every three days. Ours found the actual leak on the return under the airing cupboard, no more topping up."
"L2 on a landlord flat. New electrodes fitted, CP12 issued same visit, tenant back in hot water within the hour."
"L9 overheat lockout. Sludged system, full flush plus magnetic filter, running quietly ever since."
Ideal-trained Gas Safe engineers across all 32 London boroughs, 24/7.