Recent content by aaronH

From my experience, a split in the side of the burner usually leads to explosive ignition/ignition lockout, distortion of the electrodes, and burns out the combustion chamber seal which can also cause lockout due to the o/heat stat on the fan. Potterton have replaced the old style burner...

When you say the DHW HE is of the latter type, assume the original was a black plastic looking one that has been replaced with a smaller stainless version. It could be that this is crudded up with crud in the system, or scaled up. Check the movement of the pin/rocker next time the DHW...

I am Corgi reg, and thats my price. A plumber may be able to do it cheaper, but may not notice other problems with the heating or be able to deal with them. The pumps we fit are £66 in Screwfix. You can buy pumps in Screwfix for £30, but will have to replace it in a short period. Plus, if...

The variation of hot water performance could be explained by variation in water pressure. In the centre at the bottom is a silver hot water section which shouldf have a grey knob on the front for adjustment. On top of the section a pin moves up and down and moves the rocker to hit the...

I just remembered going to look at a fully pumped system, with two zone valves, 100,000 BTU floorstanding boiler, and the airing cupboard directly above. The homeowners said hot water had been working fine all summer, turned the heating on and shortly the hot water stopped heating. My boss...

Sludging of the system usual presents itself in the radiators firstly. When the heating is running are some of the bigger radiators stone cold in the centre at the bottom even if the heating has been on for while. Sometimes the pipes in the system can fur up like your arteries reducing flow...

We charge from £90 (new grundfos pump) to £120 + VAT (new pump and valves) AH