I have an Ideal Icos HE15 heat only boiler. A hot water cylinder in the airing cupboard and this has 2 x 2 port valves (one for water and one for heating circuits) and a small tank in the loft. As it got colder today, I put the central heating on for the first time since April 2023. The room thermostat called for heat, the motorised heating 2 port valve whirred away and the boiler fired up but only for about 30 seconds then the boiler LED just flashes constantly and the letter c shows. The boiler remains in this state and does not fire up again. There were a few glugging noises prior to the constant flashing LED.
If I turn the hot water to the on position all works normally, (boiler fires normally, constant white LED light and letter c on the boiler display) so it is just a problem with the heating circuit only.
Video of the problem here...
Any ideas, people? Much appreciated.
Steve
If I turn the hot water to the on position all works normally, (boiler fires normally, constant white LED light and letter c on the boiler display) so it is just a problem with the heating circuit only.
Video of the problem here...
Any ideas, people? Much appreciated.
Steve
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