We have a Heat line combi boiler, which is now a couple of years old. It has just started to make a strange noise, like a loud hoover or power tool. Can anyone suggest why this might be?

Carol, November 2009

for safety reasons you should get it checked out ASAP and not just live with it - could be a part thats not working properly and affecting perfomance of bioler (should be making that loud a niose especially after 2 years) and IF the performance of the bioler is affected this affected your CO levels generated by bioler Again it may be something simple but better to be safe than sorry Whatever you do dont touch bioler yourself

max, November 2009

could be the fan or the water pump

b, November 2009