Hi,
So for the last few days as it's been cold, when the heating first comes on at 7am, there is an almighty banging noise. The pipes have always banged and ticked a bit with the heating, but this is 100 times noisier. We seriously thought someone was downstairs doing some sledgehammering. Same this morning.
So I've bled the rads - no air, and also checked the pump - undone the bleed screw and checked the spindle was free, which it is. I did think the pump had gone as it's probably 10 years old, but it's v quiet just humming. The banging happens about 2 mins after the timer comes on, but then the rads do heat up, and the pipes don't then make any noise.
The system is open vent with a tank in the loft, and Potterton Suprima 30 boiler (don't ask), regularly serviced. The rads are old and fairly sludgy, but the system was flushed last year. Pump is a Pegler "Terrier TC6".
Anything else I can try before getting a heating eng on the case?
So for the last few days as it's been cold, when the heating first comes on at 7am, there is an almighty banging noise. The pipes have always banged and ticked a bit with the heating, but this is 100 times noisier. We seriously thought someone was downstairs doing some sledgehammering. Same this morning.
So I've bled the rads - no air, and also checked the pump - undone the bleed screw and checked the spindle was free, which it is. I did think the pump had gone as it's probably 10 years old, but it's v quiet just humming. The banging happens about 2 mins after the timer comes on, but then the rads do heat up, and the pipes don't then make any noise.
The system is open vent with a tank in the loft, and Potterton Suprima 30 boiler (don't ask), regularly serviced. The rads are old and fairly sludgy, but the system was flushed last year. Pump is a Pegler "Terrier TC6".
Anything else I can try before getting a heating eng on the case?
