Turning on a radiator typically involves adjusting the valves to allow hot water to flow through it. Here's a breakdown:
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Locate the Valves: Most radiators have two valves: a thermostatic radiator valve (TRV) and a lockshield valve. The TRV usually has numbers or symbols on it and controls the radiator's temperature. The lockshield valve is typically covered by a plastic cap and is used to balance the heating system.
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Turning on using the TRV: This is the main way to control your radiator.
- Identify the TRV: Look for the valve with numbered settings (e.g., 1-5) or symbols.
- Adjust the setting: Turn the TRV to a higher number or symbol to increase the heat. Turning it to a lower setting or off will reduce or stop the heat.
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Ensuring the Lockshield Valve is Open (If Needed):
- The lockshield valve is generally pre-set during installation to balance the system. You likely won't need to adjust it unless the radiator isn't heating properly.
- If the radiator is cold despite the TRV being on: Carefully remove the plastic cap from the lockshield valve. Use an adjustable wrench or pliers to slightly open the valve by turning it counter-clockwise. Note how much you turn it so you can return it to the original position if needed. Only small adjustments are usually necessary. Replace the cap when finished.
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Check for Heat: After adjusting the valves, wait a while (15-30 minutes) to see if the radiator heats up. You should feel the radiator gradually getting warmer.
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If the Radiator Still Isn't Heating:
- Check your central heating system is on: Ensure your thermostat is set to call for heat.
- Bleed the radiator: Air trapped inside can prevent it from heating properly. Use a radiator key to release any trapped air.
- Consider professional help: If bleeding doesn't solve the problem, there might be a more significant issue with your central heating system, and you should consult a qualified heating engineer.
