In a well-functioning heating system, every radiator should efficiently warm your home. If you've noticed cold spots, uneven heating, or unusual noises, our heating engineers Heating, Acton and Hanwell, will help you identify and resolve common radiator issues.
How to Make Sure Your Radiators Are Working Properly
Visual Inspection
A thorough visual inspection is crucial for identifying potential issues with your radiators.
Radiator Condition
Examine each radiator for signs of physical damage, such as dents or cracks. Check for any water leaks around the radiator, valves, or connecting pipes. Look for corrosion, which can appear as rust-coloured stains or flaking metal.
Radiator Colour and Temperature
When the heating is on, feel the radiator's surface. It should be warm throughout. Cold spots, particularly at the top of the radiator, often indicate trapped air. Uneven heat distribution may suggest internal blockages or sediment buildup.
Bleeding the Radiators
Trapped air in radiators can significantly reduce their efficiency. Bleeding removes this air, ensuring optimal heat distribution.
Turn off your heating system and allow the radiators to cool completely. Locate the bleed valve, usually found at the top corner of the radiator. Place a cloth or container beneath the valve to catch any water. Insert a radiator key into the valve and turn it anticlockwise slowly. You'll hear a hissing sound as air escapes. Keep the valve open until water begins to dribble out. Close the valve by turning it clockwise, being careful not to overtighten. Repeat this process for all radiators in your home.
Cleaning and Maintaining Radiators
Regular cleaning enhances radiator efficiency and prolongs their lifespan.
Cleaning Radiator Cores
Turn off the heating system and allow radiators to cool. Use a vacuum cleaner with a narrow nozzle attachment to remove dust from between the fins. For stubborn debris, use a radiator brush or a long, flexible duster. In extreme cases, you may need to use compressed air. Exercise caution to avoid damaging the fins.
Cleaning Steam Radiator Vents
Locate the small vent on the side of the radiator. Use a fine wire or sewing needle to gently clear any debris from the vent opening. Ensure the vent isn't painted over or obstructed by furniture.
Checking and Maintaining Radiator Fluid
For central heating systems, maintaining the proper coolant level and quality is essential.
Checking Coolant Levels
Ensure the system is cool before beginning. Locate the expansion tank, usually near the boiler. Check the coolant level against the minimum and maximum markers. If low, top up with the appropriate coolant mixture as specified by your system manufacturer.
Inspecting Coolant Quality
The coolant should be clear and free from debris. If it appears cloudy or contains visible particles, it may need replacing. Consider having a professional flush the system if the coolant quality is poor.
Inspecting Radiator Caps and Valves
Radiator caps and valves play crucial roles in maintaining system pressure and efficiency.
Radiator Cap Inspection
Allow the system to cool completely before removing the cap. Inspect the cap for cracks, damage, or mineral deposits. Check the rubber seal for signs of wear or deterioration. Replace the cap if any issues are found, as a faulty cap can lead to pressure loss and system inefficiency.
Valve Inspection
Examine both the lockshield valve and the thermostatic valve (if present) for signs of leakage or damage. Ensure valves turn smoothly and fully close. If a valve is stuck or leaking, it may need replacement. Consider consulting a professional for this task.
Need professional help with your radiators?
Our expert heating engineers in Hanwell, Ealing and Acton are just a phone call away, ready to help maintain or repair your heating system. Simply give us a call on 07402 806032.
