So, the leak could be inside the boiler, on the back of a radiator, or even coming from weak copper pipework that’s located underneath the floorboards. The pump is another culprit when it comes to leaks. The hissing noise is simply air escaping from your heating system. If you’ve no idea what a condensate pipe looks like, here’s a photo: Here’s another photo, this one shows the pipework under my sink. It’s the amount of water in a system that creates pressure. glow-worm flexicom 15hx boiler. So, as water is lost via leaks, pressure is lost too. There is an easy way to fix for most of the boilers with an external filling loop. Water and electrical parts don’t mix, and your Glow-Worm boiler is full of electrical components. Where do air locks occur, and can they be removed? The solution was simple and only took me about 1o minutes to fix. ... We regularly get called out to fix the F.22 fault code on Glow-Worm boilers, where the property owner thinks there isn’t a leak, just because it’s not in plain sight. As you do this, you may hear a hissing noise. Compare prices for hundreds of jobs and find the average cost. Has your Glow-worm boiler issued a fault code? Using these bleed valves can be messy, so make sure you cover walls and floors, and have a container to catch water. F22 – Low water pressure or ignition temperature rate rise too slow. What does the F.22 fault code mean on my Glow-Worm Energy boiler? Boiler is 2 years old and has been working well. Most causes require a Gas Safe engineer so get free repair quotes today. Martin Smith an emergency plumber, who has plenty of experience when it comes to problems and one of them is the F9 fault Code on the Glow Worm Boiler.Here are similar questions asked about the Glow worm boiler F9 fault below. Obviously, there could be several other reasons why a Glow Worm Flexicom boiler may start displaying the F4 and F22 error codes but now I’ve had some time to read through various web forums, I see this is a common issue. Will I need a new boiler if the F.22 fault code is showing on the display panel? Remember, leaks don’t just affect your boiler. Glow-worm F11, F12, F13 & F14 fault code failure problems occur unfortunately, on a small number of 24, 30 & 38, CXI, HXI & SXI combi or system boilers. However, you should speak to an emergency heating engineer first. Will resetting my boiler, allow it to work again? My boiler is leaking water, what could be the cause of the leak? However, it’s likely the boiler’s pressure has been too high, or there’s been a heating sludge blockage in the pump, causing it to strain. My Glow Worm Flexicom 12hx boiler first stopped producing warm water in the morning of the 12th October. This is such a common issue during the winter that British Gas created a helpful video explaining how to thaw a condensate pipe: If the pipe keeps freezing again and again, you could ask a plumber if its possible to redirect the pipe into an internal waste pipe, ie under a sink. By browsing our site, you agree to their use. I cannot find my instruction manual. If my boiler is leaking, could it have caused damage to other components? If your boiler stops working when it’s freezing cold outside, then perhaps the condensate pipe is frozen? Continued operation would likely damage both components, adding to the existing cost of repair. Welcome to the fault-codes section of this site. What pressure should my Glow-Worm boiler be at? Once this hissing noise stops, water will start to drain from the valve. If you can locate the drain cock, you can open this to allow water to be released. However, they will usually continue to operate between 0.5-3 bar. It’s rare that the F.22 fault code is going to lead to you needing a new boiler. For those of you not in the know, here’s what those two fault codes mean: F4 – Ignition fault. I’ve topped up my boiler with too much pressure, what do I do now? Open the valve, until water pressure on your boiler drops to 1.3 bar. Welcome to the fault-codes section of this site. The Glow-Worm fault code F.22 relates to low water pressure and here we have Q & A or require an engineer for an emergency boiler repair. When this pressure reduces, you’ll see the fault code displayed, and sometimes, the boiler will lock out until the problem is fixed. Simply resetting the boiler without fixing the problem at hand, is going to do nothing. I had the same problem with my glow worm flexicon 12hx. Like the heat exchanger, this could simply be due to old age. Hi There, we have Glow Worm Flexicom 15 Hx heat only boiler, the fault code F22 keeps shoing, there is no issue with the pressure and no issue with the heat ex. The boiler may work for 1-2 minutes, until the printed circuit board (PCB) determines that the fault still exists. Become informed about tradesman's prices and use our guide as a starting point. This is a small braided hose with a valve on it, usually located just below the boiler’s casing. But, if the boiler worked fine prior to the fault, then suddenly locked out due to low pressure, there’s a chance that the cause is a leak. In the case of the pump, it’s likely that the seals have blown. Why does my boiler lock out, and will resetting it fix the problem? First, you can locate the drain cock. You may be guided through the fault finding sequence or steps, for rectifying your boiler with this fault … The pump has a bleed screw that will help remove air locks. Unfortunately, leaks are not always easy to spot. 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