To legally perform the work, they will need to register as a Gas Safe engineer. This involves removing the boiler unit’s cover. Easy to install RF receiver which can be fitted inside the Energy combi or Energy system boiler, simple wireless setup, no electrician required People usually refer to “boiler Pressure” or “system Pressure” when they talk about water. This is also true for the Glow Worm boiler F9 fault code. The printed circuit board (PCB) is effectively the ‘brain’ of modern boilers as it sends and receives signals from all the electrical components within the unit. A faulty, broken or unconfigured PCB will prevent your Glow-worm boiler from working properly. How to fix a faulty PCB Like the F14 fault code, we find the F1, F3 and F4 are common on the Glow-worm Flexicom CX 24 and 30. These fault codes aren’t simple as the F14, as a lot of the time, all codes will show all at once and this doesn’t help an engineer to determine the exact problem.

Peace of mind. Our Glow-worm Club Energy installers can offer exclusive extended guarantees that extend to Glow-worm itself, so you’ll be able to get product support throughout its lifespan If you are unable to see the reading, count 3 times before closing the taps. Next, bring up the reading on display and continue this process until 1.5 bars is reached. These movements tend to increase with age but if there is a sudden rise in the volume of the unit’s vibrations, it could be a sign that the pump is failing. If several components are damaged, an engineer might recommend that a boiler be replaced. Get free quotes to fix your glow worm F9 error If your boiler warranty has ended or will be coming to an end soon, it might be worth considering boiler insurance. This insurance can be taken out with your energy supplier, but there's absolutely no obligation to do so. When comparing boiler insurance, keep an eye out for ones that offer annual service and safety inspections. Is it time to replace your Glow-worm boiler?Using electronic sensors, programmable thermostats maintain the temperature of your home to within one degree of your chosen setting. They are often more accurate than traditional thermostats as you can easily increase or decrease the temperature at specific times so you are only heating your home when you need to. The water pressure sensor measures the boiler’s pressure and sends them to the printed circuit board (PCB). Essentially I have tapped in directly from the boiler 230v supply to the heat link then took a jumper cable from the Live terminal of the heat link and put that into terminal 2 on the heatlink. Then added one more core from terminal 3 on the heat link then wired it into the ‘RT’ terminal on the boiler as suggested in the tutorial/forum post. This guide to the most common Glow-worm boiler problems will help you through the hard times and could even see you fixing a fault yourself. Should you be in any doubt at all or identify a fault that needs an engineer, you can get a free boiler repair quote with our service. Common Glow-worm boiler problems Glow-worm boiler problems With this tool, they will be able to determine if there are any weak connections to the PCB, and from the PCB to the fan. If there are, they will cause intermittent problems.

If there’s one Glow-worm boiler fault code we hate, it’s the F9. There’s a good reason for this. Even though it’s officially the “water pressure sensor error,” the code doesn’t actually point out any specific problem. Smart thermostats help to make sure your heating is never on when it doesn't need to be, saving energy and reducing your bills. If you have a Glow-worm MiGo installed, you can utilise the MiGo app altering the heating even if you’re not at home. The MiGo also uses weather data from the internet and will adapt automatically to the local weather.

Small but mighty

Conversely, if the pressure is too high, you’ll need to figure out why it keeps rising above the normal threshold and repair the underlying problem. You can read our guide to high boiler pressure here. What’s Next?

A multimeter is the best tool to determine where weak connections on an electrical circuit. An engineer will work through each component methodically to find the weak circuit.This device can be installed onto your existing central heating system, meaning your heating will only run when it’s needed, keeping your home consistent temperature all year round. Never attempt to fix the F16 error code on a Glow-worm boiler yourself, always hire a Gas Safe registered engineer. There are many potential issues that they will look into, diagnose and be able to repair: Combi Greenstar i range: Junior, Si, CDI compact and Cdi Classic. Systen Greenstar: 12i-24i, 27i-30i and Cdi Classic System