How to Replace Anti-Scale Cartridge in Your Steam Generator Iron

By Buy Kettles, Toasters, Irons & More Online | Russell Hobbs UK | Published: 2026-10-25

Category: How-to Guides

Keep your steam generator iron performing at its best by replacing the anti-scale cartridge regularly. Follow these simple steps to descale and maintain your iron for long-lasting use.

Quick answer

Replacing the anti-scale cartridge in your steam generator iron is a simple maintenance task that prevents limescale buildup and keeps your iron producing powerful steam. Here's how to do it in a few minutes.

Why regular replacement matters

Over time, minerals in tap water accumulate inside your steam generator iron. A fresh anti-scale cartridge traps these deposits before they reach the boiler, so you get consistent steam output and fewer blockages. Skipping replacement can lead to sputtering, reduced steam pressure, and even permanent damage to the heating element.

When to change the cartridge

Most manufacturers recommend replacing the cartridge every three to six months, depending on how often you iron and the hardness of your water. If you notice white flakes in the water tank or weaker steam, it's a sign the cartridge is exhausted. Some irons have an indicator light that alerts you when it's time.

Step-by-step replacement guide

Step 1: Unplug and cool down: Unplug your steam generator iron from the mains and let it cool completely. Never attempt to replace the cartridge while the iron is hot or still connected to power.
Step 2: Access the cartridge compartment: Locate the anti-scale cartridge housing. On most steam generator irons, it is inside the water tank or under a small flap on the base. Open the compartment according to your iron's manual. A common mistake is forcing the compartment open. If it doesn't budge, check for a release button or latch.
Step 3: Remove the old cartridge: Pull the used cartridge straight out. If it is stuck, gently wiggle it side to side. Dispose of it responsibly—some cartridges are recyclable, so check local guidelines. Do not rinse or reuse the old cartridge; it cannot be restored.
Step 4: Insert the new cartridge: Take a new Russell Hobbs Anti-scale Cartridge and push it firmly into the slot until it clicks into place. Ensure it is fully seated to prevent water bypassing the filter.
Step 5: Close the compartment and test: Close the compartment securely, fill the water tank, and plug in the iron. Run a short steam burst over an old cloth to confirm the cartridge is working and no leaks are present. If the iron sputters or leaks, the cartridge may not be seated correctly. Repeat step 4.

Product facts

Anti-scale Cartridge for Steam Generator: Russell Hobbs Anti-scale Cartridge Standard Delivery £3.99, free shipping if you spend £30 or more Buying a spare cartridge when you order other accessories saves on delivery costs and ensures you always have a replacement on hand.
Anti-scale Cartridge for Steam Generator