I recently drained down a friends heating system to enable the removal of 4 radiators for decorating purposes.They have a BOSCH WORCESTER GREENSTAR BOILER on refilling the system today I found that I was unable to get the boiler to run for more than about 3 minutes before it locked out.After turning the temperature control to reset the same thing constantly happened. I believe that I should vent the boiler by removing the casing and operating the vent. Am I correct please. Thanks in advance for any advice.
I am not Gas Safe Registered and therefore will not be removing the cover. I am an electrician and on reading the boiler manual it talks about bleeding the boiler. I have spoken to the installer now and he says, I quote :- that I will not have drained the boiler and suspects that the pump is not working. I believe I can check this by removing the large screw on the front of the pump to see if it is spinning. I have checked that it is getting an electrical supply. Regardfs.
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