The circulation pump is not working - there is no coolant circulation in the heating system - sim...
Is your circulation pump not working and there's no coolant circulation? Don't rush to buy a new one! I'll show you a working method for restoring a blocked pump in 5 minutes without replacing it. The success rate is 90%!
🔧 WHAT'S SHOWN IN THE VIDEO:
• Problem diagnostics: why a pump won't start after being idle
• Properly disconnecting a pump from a heating system
• Technique for "walking" the pump shaft with screwdrivers
• Practical demonstration on two different pumps
• Procedure for bleeding air from a system after repair
⏱ TIME CODES:
0:00 - Introduction: the problem with a non-functioning circulation pump
0:19 - Causes of blockage: deposits on the impeller and shaft
1:09 - Repair process: shaft walking technique
2:03 - Demonstration on a running pump in the system
2:51 - Conclusion: bleeding air and starting the system
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❗Attention! All channel materials are for informational purposes only and do not constitute a call to action.
✳️ Additional information in the channel description.
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CIRCULATION PUMP NOT WORKING - no coolant circulation in the heating system
00:00 Introduction
• Discussion of the problem of a non-functioning circulation pump in a heating system.
• Explaining why it's not always necessary to buy a new pump.
00:19 Causes of the Problem
• Substances in the coolant can adhere to the pump impeller.
• These deposits can jam the shaft.
• Solution: De-energize the pump and isolate it from the circuit by closing the valves.
01:09 Recovery Process
• Use wide- and narrow-blade screwdrivers.
• Unscrew the plug and attempt to turn the pump shaft.
• If the shaft is blocked by deposits, move it back and forth.
• The success rate of pump recovery is 90%.
02:03 Demonstration on another pump
• Example of rebuilding a pump connected to the system.
• Remove the plug and physically move the shaft with a screwdriver.
• Reapply power to the pump after recovery.
02:51 Conclusion
• Close the plug after pump recovery.
• Open the air vent to remove air from the system.
• The pump will work again after removing the air.
• Thanks to viewers and a call for comments.
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