Stuck with this one.
Putting on Central Heating programmer, and calling for hot water as normal. However, it is only slightly heating the water in the indirect open-vented cylinder, is this a port valve problem? Maybe only opening slightly?
- The heating is very warm, as normal, so I can't see it being a boiler problem.
Putting on Central Heating programmer, and calling for hot water as normal. However, it is only slightly heating the water in the indirect open-vented cylinder, is this a port valve problem? Maybe only opening slightly?
- The heating is very warm, as normal, so I can't see it being a boiler problem.