Recent content by dpgas

Yup its a frost stat and a pipe stat. They may be from a previous older boiler and have been left wired in when replacing with the newer boiler.

Thinking more on the pipework beneath the boiler

Auto air vent in boiler not open?

Bypass valve at the boiler opened too much???

Sounds about right. Filling up the system with fresh oxygenated water will mean that air will form and find its way to high points in your system. It would have shown sooner if you were using the heating. Monitor it going forward but at the moment I wouldn't be concerned.

Was it BG who advised on new boiler etc?

If the heating is fine then it would indicate the boiler is ok. Would be wary of what you are being advised. For what reason has all this been recommended?

I gather there was a fault as you mention reduce the pressure? Manf inst are to be followed for a reason. Why couldn't you get the previous engs who worked on your appliance that didn't highlight the installation error?

To recap it seems that you have caused yourself much more hassle and expense by trying to save money from getting a professional in to check your boiler. This fault would have been identified within 30mins of working on the appliance as fairly common occurrence. The forum is good for advice...

Yes but from what we can gather the bursts were in the loft and most likely as the loft is insulated it's like an outside space. Leave heating on low and hw on for an hour per day but leave the loft hatches open and the heat will rise preventing the pipes in the loft from freezing.

Use an adjustable spanner and turn the valves off by turning the spindle on the lockshields clockwise after you have removed the white caps. Then turn the heating back on and it should clear what sounds like an air-lock; there will be some gurgling noises then hey presto. If that doesn't...