Search results

When set to HW+CH we get virtually no HW, but when set to HW only we get some hot water after many hours. So perhaps the pump is dying. However, when we set HW+CH then the radiators fill very quickly with hot water, so the pump seems to be fine. Surely the HW circuit would be much easier to...

The pump is on it's highest setting. It is very quiet, but appears to be running in both HW and HW+CH modes. Water pressure is fine on all taps and no spluttering or drop in pressure, so I largely discounted the possibility of an air lock. I guess sludge is a possiblity. What would be the...

I can't see any other valves or thermostats around the cylinder, boiler or pump. Might the pump be on it's last legs and unable to push water around the thinner HW pipes, but can pump around the CH okay? Might there be a blockage or something restricting the flow in the HW pipes, such as a...

I was hoping someone could help me find the source of the problem with our hot water. We have a gas boiler (not combi) and a programmer that allows us to set HW, or CH+HW, or both off. The CH is working fine, but we get no hot water, or mildly luke warm. We have an immersion heater in the...