Problems with radiators, do not heat up

Multiple radiators do not heat up. Done bleeding and refilling.

  • Multiple airlocks

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  • Problem with boiler.

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N

NDS

New Member
Problem started when 2 radiators were not heating. When balancing, I forgot to turn the boiler off. Now four different radiators are not heating. Boiler was running after I finished balancing but the pressure was zero. I have no idea now. I have drained and refilled the system, but it did not help.
 
Thank you. I also bled some radiators that caused the loss of pressure in the boiler. Was a bad day.
 
Close TRV's on all rads that heat up ,and 3 rads that do not. Leaving one rad with its TRV open and it's lockshield half open. Run heating till that rad heats up. Then move onto next rad that doesn't heat and open its TRV,that should now heat up. Report back on the results
 
terrymac said:
Close TRV's on all rads that heat up ,and 3 rads that do not. Leaving one rad with its TRV open and it's lockshield half open. Run heating till that rad heats up. Then move onto next rad that doesn't heat and open its TRV,that should now heat up. Report back on the results
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Thank you. I will do it today and report back.
 
Just to be clear, do I also close lockshield valves on all radiators except the one that is left half open.
 
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