Ideal boiler showing F1 in Coventry? It means the water pressure is too low. How to check it, top it up safely, and spot a leak.
Cold, most Ideal boilers want around one bar - your manual and the label inside the case give the exact figure.
Open the loop slowly, watch the gauge, close it fully at the right pressure. Rushing it overshoots, and too much pressure causes its own problems.
Bleeding radiators lets water out with the air. One top-up after bleeding is expected and not a fault.
A leak under a floor, a weeping valve or an expansion vessel that has lost its charge. Found once, fixed once.
No. The boiler will not run on low pressure, which is the safe outcome. Smell gas? Leave the house, do not use switches, and call the National Gas Emergency line on 0800 111 999. A fault code is never a gas leak, but a smell always is.
That is usually the pressure relief valve or the expansion vessel. Worth booking in rather than topping up indefinitely.
You can, but each refill brings fresh oxygenated water into the system, which feeds corrosion and sludge over time.
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