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Boiler is Vokera Compact 29A I decided to check whether my system had been properly balanced, as the guys who fitted the boiler had already done it, but without the use of thermometers. The system is small and all quite compact, so there's actually not that much difference in flow between...

I've just had a whole new boiler system and controls fitted, consisting of the following: Vokera Compact 29A combi condensing boiler Honeywell CM927 room stat. TRVs on most rads The boiler has the normal flow temperature controls on the front for setting the main boiler running temperature...

I need to replace my current boiler and a friend of a friend has given me what I think is a reasonable quote, but I'd like to see what you guys think, having much more experience than me. I've asked for a reasonable budget combi-boiler to be fitted and this is what he quotes for: Vokera...

Hi, I'm in need of a boiler repair. Needs PRV replacing/cleaning and the diverter valve servicing. Trouble I'm having is the boiler is an Icon 23T and boiler engineers I have spoken to have either been scared off because they have never heared of the boiler and are reluctant to work on it...

Hi everyone. My combi-boiler (Icon 23T) has recently developed a bit of a problem. When I turn on a hot tap, it seems to take about 5-6 seconds for me to hear the microswitch 'click' and fire up the boiler. This isn't too much of an issue, but whilst the hot water is running, it also very...

Hello all. I'm having problems with my Icon 23T boiler (I know, I know) which of course is nicely timed for the cold weather. Basically, the boiler is losing pressure quite quickly as it is passing through the pressure release valve. I want to determine whether the problem lies with the...

I normally have my boiler pressure set to just slightly over 1 bar when stone cold. However, today, the boiler had been running for some time and I noticed the pressure had risen to almost 2.5 bar. Obviously, I would expect it to rise when it gets hot, but does this seem normal, or is...

Hi all, I have a troublesome radiator in my spare room. I normally have the valve turned right down (but cracked open a quarter-turn to allow minimal flow) since I rarely use the room. I decided to turn it up to full as we had visitors staying, but unfortunately it would only get warm at the...

Hello all, The hot water on my Icon 23T has developed a fault overnight. This morning I turned on the shower as usual to find it was cold, so I went downstairs to investigate the fault further. Boiler readings were fine and pressure was normal. I tested the boiler by turning the hot water...

After reading a recent thread about undersized gas pipework and the dangers of it, I decided to inspect my system - which was installed by the previous owner of my house about 3 years ago (who was an RGI, but still a bit of a cowboy.) First thing I noticed was all the gas piping is in 15mm...

Does anyone have one of these units? I've had mine for about 2 weeks now and it works great, except I've noticed the optimised start feature often causes the heating to come on very early. In the manual, it states it will adjust this accordingly, dependent on the current temperature in the room...

I've balanced my CH system using one of those IR thermometers, resulting in all of my rads heating up together quite nicely. I've adjusted the valves down to the settings I require, but one or two of the radiators I need on full setting. Typically speaking, what would be the maximum...

I'm trying to connect my new thermostat to my Icon 23T boiler. Thermostat is of volt-free type and the boiler MIs say there should be a "white external controls cable" that is bridged for connecting a thermostat. All makes sense. I've opened the control panel to expose the PCB and there is a...

Hi everyone. I'm about to install a Wireless RF Thermostat to my combi boiler. The receiver unit which does all the switching requires a permanent mains supply. It will not actually switch the live pole - the switching circuit is completely voltless, but the relay unit needs a 240v supply and...

In an attempt to make my current heating system more efficient (combi boiler with just temperature control on the unit) I would like to install a wireless setback thermostat control system. I need it to be a digital timed thermostat which incorporates a 7 day programmer for heating the house...

Hi there. I've just had my Icon 23T boiler serviced and diaphragm replaced. After the engineer had finished the work, the sound emitted from the extractor fan is very different. It used to be almost silent but now it makes a whirring sound as though it is spinning much quicker. The noise...

Hi everyone. I've had a good search on the forum about TRVs and found some very useful information, but I have a couple of questions. My current system is a 24kW combination boiler running 8 radiators. The only temperature control I have in the whole house is the one located on the boiler...

Hi everyone! I've got an IconT 23T wall mounted combination boiler (rebadged Glow Worm I think) that was fitted to my property when I moved in. I believe it is about 2 years old. The only thing I have modified on the system is relocate 2 radiators and remove one from the kitchen. Whilst...