Ive an sterling 50 oil fired indirect system with a turco trojan boiler, my smc comet 2-130 pump seized up (freed up with a hammer but then stuck cutting out the boiler) but i then decided to change the pump before i actually need the heating.
anyway i went to plumb centre and got a circulating pumps 5m head model and fitted two new pump valves, since fitting it ive found that the boiler still runs hot and cuts out.
The pump whirs and ive pulled out the plug and it spins, pulled aside it spits boiling water as the instructions says it will. Ive tried speed setting 2 and three to clear the system but it just doesnt circulate enough.
BUT only the upstairs rads get hot, downstairs are frozen cold!
ill turn off the boiler for the night and leave the pump on to circulate the water (hopefully).
also the overflow tank pumps air out of the vent pipe filling our attic with steam!
ive just put in a litre of sentinel sludge remover, its 12pm and im knackered.
Any suggestions to solving this problem would be appreciated as the missus is not impressed after a week of fiddling!
Apologies for the long post
Many thanks
Jonathan
anyway i went to plumb centre and got a circulating pumps 5m head model and fitted two new pump valves, since fitting it ive found that the boiler still runs hot and cuts out.
The pump whirs and ive pulled out the plug and it spins, pulled aside it spits boiling water as the instructions says it will. Ive tried speed setting 2 and three to clear the system but it just doesnt circulate enough.
BUT only the upstairs rads get hot, downstairs are frozen cold!
ill turn off the boiler for the night and leave the pump on to circulate the water (hopefully).
also the overflow tank pumps air out of the vent pipe filling our attic with steam!
ive just put in a litre of sentinel sludge remover, its 12pm and im knackered.
Any suggestions to solving this problem would be appreciated as the missus is not impressed after a week of fiddling!
Apologies for the long post
Many thanks
Jonathan