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Dec 1, 2017
4
0
1
50
watford
Member Type
DIY or Homeowner
Hi
I'm looking for some help or advice about why my central heating is not heating up fully. The radiators are heating up a bit, but most are not hot. The upstairs ones near the boiler are hottest. The boiler is a Glow-worm Ultracom2 30SXi. Looking at the control panel, the temperature is generally around 40 degrees and the radiator indicator is flashing (which I think indicates that the central heating is active). Every 3 or 4 mins, the burner fires up for about 30 seconds and the temperature indicator rises to about 60 degrees before the burner seems to shut-off and temperature drops again. Central heating water temperature is set to 70 degrees, so it seems to shutdown way before this.

I'm guessing there is a circulation problem, but there is no error shown on the boiler. The output hot pipe does get hot when the burner runs, but soon cools down.

Any advice gratefully received as it is not warm tonight.

Many thanks
 

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