Vokera 29 HE - hot water, but no central heating

[NibblyPig]

Hello,

I just moved into a house with this boiler. It was last serviced in June, but I imagine the CH part hasn't been used over the summer. Just before I moved in a couple of days ago, I had some plastering done that involved removing and replacing two radiators. I was told they repressurised the system aftewards.

The boiler works fine for hot water only - when it's switched on it makes no noise until a tap is turned then it activates and I can enjoy a hot shower.

However if I change the dial to CH & hot water, when I first turn it on the light goes from red, to orange, to green, it fires up (I see flames) then a few seconds later the flames go and it just sits there making a constant chuntering noise. The light flashes green every half a second indicating a temporary fault. Hot water still works during this time and will cause it to fire up again.

Any ideas what this could be, or is it time to get someone out? As far as I know there is no external thermostat (have searched the house) and when I tried to get it to work I put the built in dial to maximum and the switch to 'on' (not timer).

The pressure looks fine, it's on about 1.5 which is the upper end of the range it should be at according to the manual.

Thanks for any advice!

 

[vulcancontinental]

Could be a few things, they may closed the valves beneath the boiler for all I know, not vented the system properly or it may be something within the casing.

I do think you'd be best served calling the guys back or was the removal and replacing of the radiators done by the plasterers? Getting a heating engineer in might be the best option.

Flashing green light is a non-volatile fault and the boiler waits 15 minutes before deciding the fault is permanent and red light solid is illuminated.

 

[NibblyPig]

Thanks for your reply. I suspect it could be something really simple but I have looked and I don't know. I guess I'll have to call someone.

This is what my boiler looks like.

https://dl.dropboxusercontent.com/u/104757/2014-09-02 19.33.13.jpg