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Bang/loud click from Radiator


Noddy2021

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Morning everyone,

 

Just wanted to get some tips/thoughts on the below:

 

I have my radiators on a timer to come off every night at 12.45AM. I have 6 radiators in the house.

 

At 12.45 AM one of the radiators in the hallway (a vertical one) makes a bang/loud click noise. Similar to a thermostat but much louder. 

 

Initially thought it was the thermostat but can confirm its the radiator. It has been doing this for about 3 or 4 weeks. Every night like clockwork.

 

Has this happened to anyone? 

 

Does anyone have any tips or suggestions?

 

Thank you in advance!

 

 

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5 hours ago, dpmiller said:

Is the radiator clamped tightly in it's mounting brackets? If it is, try loosening a couple a touch.

If anything it is too loose but I don't think its that causing it. System been setup for 1.5 years and the radiator hasn't been touched.

 

I have a feeling it might be the rad thermo valve?

 

If I change this would I have to bleed the system, etc?

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