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Troubleshooting a Hot Water Boiler - Gas Fired Boiler Repair

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PROBLEM: Noisy Pipes
Troubleshooting a Hot Water Boiler - Gas Fired Boiler Repair

Hot Water Boiler Circulator


PROBLEM: Noisy Pipes

Possible Causes

  • Faulty circulator
  • Water trapped in return lines
Possible Repairs
  • Check the circulator. There is a spring loaded coupling that connects the pump to the motor. When it breaks after the pump jams, the coupling will make a loud noise as the motor runs.
  • Check that the pitch of the return lines slope back toward the boiler. Adjust pitch with new pipe hangers if necessary.
  • Adjust pitch of radiator with a shim so that it slopes back toward the return pipe.

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