ticking radiator

propertyrental Posts: 2,199
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When the heating comes on, one rad ticks. Just the one. Why?
(have bled - no air inside)


  • TadleyBaggie
    TadleyBaggie Posts: 5,937
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    Metal expanding, not unusual.
  • FreeBear
    FreeBear Posts: 14,255
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    Copper pipe tight in one of the pipe clips ?
    Used to hear ticking noises from my central heating system as it heated up & cooled down. Eventually got round to running a pair of 15mm pipe in some plastic conduit (they were being embedded in a wall), Since then, no noise.
    If the noise has only recently started, try giving the radiator a nudge one way or the other horizontally - It could have been knocked, putting one of the pipes under stress.
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