131K views · 119 reactions | During prolonged periods of cold temperatures, there’s a risk your condensate pipe may freeze, causing your boiler to stop working. Watch this video to learn how you can minimise the risk and safely defrost it should this happen. | Worcester Bosch | Facebook

Pumping up the expansion vessel on a Worcester Bosch gas boiler is a crucial maintenance task, but it must be done by a qualified Gas Safe registered engineer. Attempting this without proper knowledge and tools can be dangerous and could damage your boiler or heating system. Why is Pumping Up the Expansion Vessel Important? The expansion vessel is a vital component in your sealed central heating system. Its job is to absorb the expansion of water as it heats up and contracts as it cools down. It