hi all,
the central heating water pump at my parents house seems faulty. it makes unusual noises like gurgling, groaning noises that we never heard before. further to this after just 2 mins in the pump gets very hot and the boiler switches off. the pump itself was originally installed in 1986!! as its the oldest component i am guessing it is that.
the system is a condensing boiler (Worcester bosch 18Ri) with an F&E tank in the loft. the pump itself is SMC comet 130-45 installed 1986 we have NO cylinder
i have done the following to diagnose the system:
Drained F&E tank and refill. all works ok, ball cock works fine. tank drains at a steady rate and also fills at a steady rate.
i have bled all the radiators in the house starting at the bottom. all fine
i have ran a magnet on the pipes in and out of the tank, and around the water pump, no pull on the magnet
i have attempted to diagnose the actual pump, but when i take off the cover, i cannot find any bleed screw
after the above, the pump makes a loud whirring noise when switched on, it runs hot, but does not groan and gurgle. the boiler switches off after 5 mins
i am wondering, or seeking advice what else i can do to get the pump working and ultimately the CH back up working. is it a faulty pump?
previous to this the CH has been running fine. we estimate we stopped using it in may, and last week we put it on to test if the heating was working fine
i will attach some photos.
please note i am not a plumber or CH engineer, i am a DIYer with a splattering of knowledge and experience
many thanks in advance
the central heating water pump at my parents house seems faulty. it makes unusual noises like gurgling, groaning noises that we never heard before. further to this after just 2 mins in the pump gets very hot and the boiler switches off. the pump itself was originally installed in 1986!! as its the oldest component i am guessing it is that.
the system is a condensing boiler (Worcester bosch 18Ri) with an F&E tank in the loft. the pump itself is SMC comet 130-45 installed 1986 we have NO cylinder
i have done the following to diagnose the system:
Drained F&E tank and refill. all works ok, ball cock works fine. tank drains at a steady rate and also fills at a steady rate.
i have bled all the radiators in the house starting at the bottom. all fine
i have ran a magnet on the pipes in and out of the tank, and around the water pump, no pull on the magnet
i have attempted to diagnose the actual pump, but when i take off the cover, i cannot find any bleed screw
after the above, the pump makes a loud whirring noise when switched on, it runs hot, but does not groan and gurgle. the boiler switches off after 5 mins
i am wondering, or seeking advice what else i can do to get the pump working and ultimately the CH back up working. is it a faulty pump?
previous to this the CH has been running fine. we estimate we stopped using it in may, and last week we put it on to test if the heating was working fine
i will attach some photos.
please note i am not a plumber or CH engineer, i am a DIYer with a splattering of knowledge and experience
many thanks in advance