If the diverter valve doesn’t sound like the issue, you can read more about “Worcester boiler no hot water” in our full guide on the subject. #3 – Your Boiler Is Leaking Malfunctioning thermocouple— This critical safety device automatically shuts off the gas supply if the pilot light isn’t lit. If this safeguard breaks, it may cut off the gas even though there isn’t a thing wrong with the light itself. You should ensure the heating is turned off before repressurising the boiler as it will sometimes fire up as soon as it reaches the minimum working pressure. As in the above section, make sure to completely switch off your boiler at least four hours before you start work to give it sufficient time to cool down In other cases, the boiler’s pressure gauge may be displaying incorrect pressure readings, leading you to believe that the pressure is lower than it is.

While removing the key from the manifold, you would notice a few drops of escaping water. That’s good and normal. To protect itself and the central heating system from damage, Worcester boilers are equipped with safety mechanisms that deal specifically with high pressure problems. You’ll learn what the ideal pressure is for a boiler, and what to do when it fluctuates. You’ll also find out the real risk behind unimpeded boiler pressure rise.Or, if you’re ready to ditch it for a new one, you can get a fixed price online from Heatable, with next day install and boiler services. What Happens When You Get a Worcester Boiler Fault? When there is an issue or your gas boiler has stopped working, Worcester Bosch boilers display an error code If you’re struggling to repressurise your boiler don’t worry, our highly experienced members are here to help with any job no matter how big or small. Having your boiler regularly serviced is key to keeping it functioning at its best, ensuring it lasts longer and preventing any future issues. Boiler servicing also reduces your risk of carbon monoxide poisoning, keeping you and your family safe and healthy.

Usually, this is below the boiler but there could be an external flexible filling loop anywhere on the heating system, sometimes hidden away in cupboards or behind boxing. External filling loop To find out which it is, you can tie a carrier bag to the end of the copper blow-off (overflow) pipe outside. Boiler blow-off pipe You can increase the boiler pressure on your Worcester by topping up the boiler. The way you’d do this will depend on the type of filling mechanism you have. It’s a daunting issue when you own a Worcester Bosch boiler: no hot water flowing despite things appearing as they should. A keyhole for a plastic key with a white square knob to turn: This knob will need turning like a tap to open and close.Open the taps on both valves letting water flow from the mains and enter your central heating system If you need to repressurise your Worcester boiler once or twice a year I wouldn’t worry about it as it’s such a small leak that it’s barely noticeable. Worcester Boiler Pressure Too High If your boiler won’t ignite but the pilot light works just fine, read our thorough guide to common ignition problems and learn about other potential causes. #10 – Worcester Boiler Not Responding to Thermostat Commands Before you can change the pressure on your boiler, you need to identify what kind of filling system you are using.

Below, we’ll take a look at both of these causes and help you troubleshoot them. Leak in the Heating System If a gas supply issue is causing your pilot light to go off (along with all of your other gas appliances), then the obvious step would be to ring up your gas supplier. Look up into the boiler to find the filling link. This is a small hole just to the right of a white square which the key will slot into The only exception to this is if your pressure sensor itself is faulty. The Fix for Boiler Pressure Problems This is most likely an expansion vessel problem, if so, you will need to recharge the expansion vessel, or you’ll have to replace it if the diaphragm inside is split.

FAQs About Worcester Bosch Boiler Faults

Top tip: If the pressure in your boiler rises too much, you can bleed any of your radiators to reduce this. Leaks can be anywhere on the full central heating system, boiler, radiators, or pipework under floors. Worcester Boiler Leaking Water