Troubleshooting a Hot Water Boiler - Gas Fired Boiler Repair

PROBLEM: Noisy Pipes

Hot Water Boiler Circulator

Possible Causes

• Faulty circulator
• Water trapped in return lines

• 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.

Index: Troubleshooting a Hot Water Boiler - Gas Fired Boiler Repair

1. Introduction to the Hot Water Boiler
2. Boiler Components
3. PROBLEM: Boiler Produces No Heat
4. PROBLEM: Poor Heating Performance
5. PROBLEM: Expansion Tank Has Excess Water and Inadequate Air
6. PROBLEM: Water Leakage Around Boiler
7. PROBLEM: Not All Radiators Heat
8. PROBLEM: Noisy Pipes