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Hi Tony. i had pump out and tried three thinger rule it appears to be ok. again its very clean. the pump dos get very hot . is there anything else i should look at. thanks. Kevin

Thanks again tony. ill have a look and see if i can stop it. if i dont reply you will know ive lost all my fingers trying to stop it. ill be back in next day. regards Kevin

Thanks for reply tony. I took out the four allen screws holding the pump and the impeller run freely. i did not see any dirt. i also took out the braided pipe running from pump and that was clear too. Last night i shut down all rads except one and this took a long time to heat up. they...

Can anyone help. i have a old vokera linea730. it seams to me that the pump is not moving the water around. it gos down to 60 degrees then heater comes on and sends it to 80 degrees. but the radiators are still cold. even if i just have one radiator on and all others locked of it still dos...