Bleed your radiators and check your thermostatic radiators

If your central heating is not working you may want to bleed your radiators and check your thermostatic radiator valves before calling out an engineer. This step-by-step guide will tell you how to check both of these.

Bleeding your radiator

Air inside your radiator can stop it from working, giving the impression that your central heating has broken.

Follow these simple steps to bleed your radiator

  1. Locate the valve at the end of the radiator (round valve with square screw groove)
  2. Using a radiator key turn the valve carefully until you hear air being released
  3. Once the valve starts to drip tighten and close it
  4. Check your water pressure on your boiler after doing this

Note: It might be best to have a cloth in your hand when doing this to prevent dripping on your floor or thermostatic radiator valve.

Checking your thermostatic radiator valve

If your radiators are cold it may be because your thermostatic radiator valve is set to low. A thermostatic radiator valve is located near the bottom corner of your radiator. It is a cylindrical shape with numbers on it (normally ranging 1 to 5), the higher the number you twist the valve to the more hot water will be let into your radiator.

Follow these simple steps to thermostatic radiator valve:

  1. Check if the boiler power light is on
  2. Locate your thermostatic radiator valve
  3. Make sure that nothing is obstructing it as they detect the temperature of the room
  4. Twist the valve to a higher number to allow more hot water to flow into your radiator

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