Boiler Advice

If your boiler display says L2 on an Ideal boiler, it means the boiler has tried to ignite but failed to establish or keep a flame. This is known as an ignition lockout or flame failure. In simple terms, the boiler attempted to light… but it didn’t stay lit. When that happens, the boiler shuts […]

Choosing the best boiler for your home in Scotland isn’t about picking the most advertised brand. It’s about finding a unit that copes with cold, damp winters, delivers strong hot water when the mains coming into your house is at its coldest, and comes with warranty backing that actually holds up. At The Edinburgh Boiler

Every winter we get the same run of calls. First proper frost of the season, and the phone starts at about half six in the morning. No heating, no hot water, red light on the boiler, and a fault code nobody can make sense of. Most of those calls are a frozen condensate pipe. The

Quick answer: The U9 fault code means your Worcester Bosch boiler has overheated, reaching roughly 109°C, which is about 9°C above its 100°C safety threshold. On many models the display counts down from U9 to U0 as a forced cool-down period before it will let you reset. Overheating on a Worcester is nearly always a

Quick answer: The 1021 fault code (often shown as 1021 B) means your Worcester Bosch boiler has a problem with the hot water temperature sensor, either the sensor itself has failed or its plug isn’t connected properly. It’s most common on Greenstar 8000 models. Your heating will often keep working, but hot water becomes unreliable

Quick answer: The C7 fault code (often shown as C7 214 or C7 217) means your Worcester Bosch boiler’s fan isn’t running when it should be, either failing to start or stopping during operation. Without the fan there’s no safe airflow through the combustion chamber, so the boiler locks out immediately. This is a combustion

Quick answer: The C6 fault code (often shown as C6 215 or C6 216) means your Worcester Bosch boiler has detected the fan running outside its safe speed range, either too fast or too slow. The fan controls how air and flue gases move through the combustion chamber, so the boiler locks out rather than

Quick answer: A flashing blue light on a Worcester Bosch boiler means the appliance has locked out on a fault. A steady blue light is normal. A slow flash, roughly one every two to three seconds, is a fault lockout and is by far the most common pattern. A fast continuous flash usually means the