Rattling coming from baseboard heating system


Old 02-28-14, 08:41 PM
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Rattling coming from baseboard heating system

There's a constant rattling/jack-hammer/chain noise coming from my baseboard heating system. Originally I noticed it in a far room, but traced the sound back to the boiler room. It appears to be coming from the expansion tank, but I can't be certain.

Here's a video of the noise: https://vidd.me/O4J

Any advice would be appreciated.
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Old 03-01-14, 04:59 AM
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The tank and pipes are acting like the amplifier to the source. It may be your circulator actually making the noise. Take a screw driver and put one end on the circulator and the other up against your ear. You'll know right away if it's the source of the noise and needs to be replaced.
Old 03-01-14, 08:35 AM
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Yeah, that could be a pump noise.

Find the pump and take picture of it.
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