Worcester Bosch Internal Filling Key To Repressurise Combi Boiler

Product Information

Before we delve into the methods of increasing boiler pressure without a key, it’s important to understand why maintaining the right boiler pressure is crucial. Steve has been servicing my boilers for 3 years and performed a full flush and strip down service this year. When the pressure in the boiler is too low you just need to open the inlet valve keeping an eye on the pressure dial. Purchases made after 1 pm are not guaranteed to be dispatched the same day, although most of the time we are able to dispatch until 4pm. They arrived with protective tarp to protect the floors while working and left the place perfectly clean.

Their commitment to the highest standards of manufacturing over the last 50 years, has led our boilers to receive coveted Which? The small Optimino key is all that is needed for connection to a boiler and you can future proof your install if you have, or want to add, solar PV. Our Find a New Boiler tool is the easiest way to find and compare Worcester products suitable for your home heating requirements and only takes a few minutes.

Finance is provided by PayPal Credit (a trading name of PayPal UK Ltd, Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH). Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

Please note, these items will arrive at a different time to products dispatched from our head warehouse.

Push the key up into the unlocked position and turn it to the right – to lock it into position (following the locked symbol).

Please do not send your purchase back to the manufacturer unless otherwise instructed by Spares Direct. In this guide, we’ll explore various methods to increase the pressure on a Worcester boiler without a key, ensuring your heating system continues to function optimally. Originally founded in 1962, Worcester became part of the Worldwide Bosch Group in 1996 and are the UK market leader in domestic boilers.

Conversely, high pressure can be equally problematic, potentially causing leaks or component failures. Once you have closed the nut tightly with your hand, you can then turn the key underneath the boiler back to the unlocked position. No criticism of the seller ,but Worcester designed a fault into their boilers with this filling method.