Recent content by DGR

That was the other alternative - but as I already had the bypass connections I just connected the 2 via a small rad rather than use the whole system. If the current effort doesn't work properly, that's my back-up plan!! D...

Hmm...that's helpful. Sometimes we get 'advised' by the 'professionals' ... :D ... that they are good boilers, othertimes it's just what we find in the cupboard when we move in. We've had ours for 3 and half years, with faultless behaviour - and although it's had couple of problems in the...

I'd check that the switched live from the valves is properly connected to the SL1 and/or SL2 on the boiler, and that when the valves are demanding (open), they are supplying a signal for the boiler to fire. If you open the valves manually, they won't give a live signal to the boiler - the...

The code 0 19 isn't a fault code. (Fault codes are either b for transient or occasional faults, or E for major ones.) It is saying that you have got no demand, and the internal temperature of the boiler is 19 degrees. If there is no demand - it won't do anything - it will sit there until it...

On the C55 the pump is integrated within the boiler. Yes - as soon as the programmer switches the circuit off, the motorised valves shut down and stop the demand from the boiler - at which point the boiler goes into overrun (mode '6' on the display). D...

Hi Tony, Thanks for the info - much appreciated. The system has about 35 radiators on it, with 7 radiators/towel-rails spread throughout the system without TRVs, so bypassing within the rad circuit when the TRVs start to shut doesn't appear to present any problems. It's when both the CH...

I put the rad in because the manual suggested that the bypass should be at least 10 metres of 22mm pipework to allow sufficient volume of water to enable the HE to cool properly on over-run (I'm assuming that this is a worst case scenario - boiler running at full power when the demand switches...

Hi, I have a Keston C55 which has been running happily for 3.5 years (unusual, by all accounts) - but when installed it only had a manual bypass fitted - which was too short and caused some problems. So when I had to have some major work done on the boiler (Heat Exchanger replacement...