Glow Worm boilers and other heating systems can be characterised by two types of pressure: one is gas, the other water. This really is a fact-finding mission. What we’ve found with the F9 code, is that many affected boilers are running on a central heating system that has not been flushed, or doesn’t have adequate chemicals in it.

The water pressure sensor measures the boiler’s pressure and sends them to the printed circuit board (PCB).Turning the hot water tap calls the printed circuit board (PCB) into action, telling the burner to fire up so that the water can be heated, which involves the gas valve supplying sufficient fuel. When the F16 error code appears, there’s an issue preventing this process form happening – either the flame isn’t present or the PCB is failing to detect the flame. How to fix the F16 error code have no minimum requirement for heating controls. You can replace your room thermostat with another room thermostat and nothing more. Again you can opt for an advanced control or may wish to have the functionality of an internet control and we guide you suitable products below. Opentherm boilers and boiler branded controls

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. The Climapro₂ RF is our most innovative wireless programmable room thermostat. This intuitive intelligent control allows your customers to program their central heating and hot water requirements for each part of everyday. 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: 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.These devices are used to measure resistance of wiring or parts, and can be compared with the recommended resistance. You may be able to diagnose some of these problems without professional assistance. For instance, if there’s been a power cut or your other gas appliances aren’t working, then your boiler is probably not getting gas or electricity and thus can’t switch on. On other occasions, we’ve found that leaks in the system are causing low boiler pressure, or that using a multimeter, we were able to find a weak connection to the fan. Flame Detection Fault (24CI/30CI) — F16 Error Code When choosing your thermostat or heating control, it’s important to consider how often you're at home and if it is compatible with your current boiler. If you work from home a lot, opting for a smart control may be the best option. If you want your heating to come on at the same time each day, a mechanical thermostat may work best.

If you're looking to replace your Glow-worm boiler then a Gas Safe registered engineer will be needed to carry out the installation. The decision you have to make is whether to go with a local engineer or national company. Boilers can lose pressure slowly over time. Most boilers need to be repressurised at least once a year. You can increase the central heating system pressure yourself. So I did a bit of research and found that apparently the drawings supplied is catered for American style boiler systems and found someone who had done a similar install. I have posted a link to the guide I followed below for your reference.

By programming your heating to come on at a time that fits your schedule is the most efficient method of making sure you're not heating your home unnecessarily. The government recommends the ideal room temperature is between 18 and 21 degrees. However, depending on your lifestyle, this may differ. You will need to bleed the radiators which doesn't require an engineer unless you don't feel like carrying out the task yourself. First, make sure that the boiler is turned off and cold. To prevent any hot pipes from heating up, it is safer for both the boiler and you. It depends on the pressure issue. If the boiler pressure gauge is showing a reading that’s too low, there’s likely a leak somewhere in the heating system; you’ll have to repair the leaky component before topping up the boiler’s water levels via the filling loop. A pressure sensor fault could be another cause; you can learn more about low pressure problems in our guide here.

Resetting a Glow-worm boiler is simple. All you need to do is press the reset button and hold it for 3-5 seconds (boiler manuals typically state where a particular model’s reset button is, and how long it needs to be pressed down). The boiler should then take several minutes to restart. If you have a 24CI or 30CI, you might have noticed a F16 fault code on the display. Sometimes, the code can disappear by itself, but it’s likely it will return in a matter of days. 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 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 Your boiler unit may heat up if excess heat is not transferred to water through the heat exchanger.Unlike compensation controls that adjust the gas valve, optimisation controls build up patterns of use to operate the boiler most efficiently. These can work with all boilers to improve their efficiency. Table 4 below shows third party smart controls that offer optimisation features and these will be compatible with most boilers. Boiler branded advanced controls + compatible boilers Product