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Just to add it sounds like the fan starts initially and boiler fires, and then within a few seconds fan cuts off and ramps down.

Hi there, I wonder if anyone can assist with suggestions. Greenstar CDi30 has been fault free for 10 years. One night last weekend the pump was still running after the system should have switched off and there was an E9 fault code showing. Upon resetting the pump switched off and the boiler...

Advice please! Will shortly be adding a small stuart turner showermate pump in new bathroom installation. My plan is for the pump to be located under the bath, as at the one end there will be a fair bit of space with some boxing in between bath end and wall. Screw fixed removeable panel...

Thanks Werewolf. Thought there may be such a device. Just searching it looks as though the cost of a cyltrol valve won't be that much less than a 2 port control pack though, which will also get around our mechanical timeclock programmer. Sounds like there is no big issue pumpwise......

Thanks. Absolutely agree- the system both needs a flush and the older TRVs replaced with another TRV or just a rad valve depending on where located. I'll do that at the same time along with moving a few rads. It does not seem great to me controlling the hot water cylinder temperature purely...

Recently moved into a house with a combined pumped central heating and hot water circuit. The 20 yrs old Potterton nice and reliable but inefficient floor standing boiler ultimately requires replacement but I want to leave this for the minute until other work is completed (kitchen extension...

As far as I can see it is a two pipe system from lifting of the floor boards which has rather confused.

Just moved into a 1930s house and I need to update / replace a few radiators and replace sticking Drayton TRVs. Generally the radiators have a top feed with TRV and bottom return. On some the feed and return are on the same side of the radiator. I'm more used to seeing bottom feeds and...