Hi,
Have been getting intermittent kettling noise with loud banging via boiler /pipework. Boiler / pump installed about 18 months ago. Ha sbeen fine until approx 4 weeks ago. Pump is operating and was set betwen 2&3. Enginner upped speed to highest 3+. Calmed down but carried on doing it intermittently. System can be very quiet for hours and then have a mad 5/10 mins. Does not discriminate between D/H/W or C/H selections. Less of a problem on the higher speed but still a problem. Engineer came again and said he had spoken to someone that morning who told them it is a variable pump, that may be not operating correctly and to overide it. Had a look and couldn`t find anything , but before leaving to go and further research found that the pump switch clicked a further position past the no3. Said it seemed to be the position and to see how it went. It was very good and quietened things down, but had a 5 min clunk and gurgle last night so there is still something amiss. Have you guys had much problem with these energy conservant variable pumps? How many positions are selectable on them? Thoughts / experienced observations appreciated.
Regards
Have been getting intermittent kettling noise with loud banging via boiler /pipework. Boiler / pump installed about 18 months ago. Ha sbeen fine until approx 4 weeks ago. Pump is operating and was set betwen 2&3. Enginner upped speed to highest 3+. Calmed down but carried on doing it intermittently. System can be very quiet for hours and then have a mad 5/10 mins. Does not discriminate between D/H/W or C/H selections. Less of a problem on the higher speed but still a problem. Engineer came again and said he had spoken to someone that morning who told them it is a variable pump, that may be not operating correctly and to overide it. Had a look and couldn`t find anything , but before leaving to go and further research found that the pump switch clicked a further position past the no3. Said it seemed to be the position and to see how it went. It was very good and quietened things down, but had a 5 min clunk and gurgle last night so there is still something amiss. Have you guys had much problem with these energy conservant variable pumps? How many positions are selectable on them? Thoughts / experienced observations appreciated.
Regards