I would be grateful if anyone could help me with this -
As a bit of background, the boiler has generally been working ok, although if anything the HW temp is lower that it used to be although some folk might put that down to external conditions.
The last few weeks I have experienced random boiler lock outs on the 100e model. Not frequent but say once or twice a week. The boiler is in the loft unfortunately so it is impossible to tell exactly when the lock out occurs and if it associated with HW or heating etc.
However, what I found yesterdays was that at times (not always) when their is a central heating demand the boiler is 'stopping and starting' every couple of minutes automatically. This can go on for indefinately and rads are still hot but if you click off using the thermostat, the demand light goes off but the boiler sounds like something is going on inside and then a few seconds later it locks out. Initial restart is not then possible unless the boiler is switched on when a hot tap is running - if you then close the hot tap the boiler then kicks in to central heating mode.
Any suggestions gratefully appreciated.
As a bit of background, the boiler has generally been working ok, although if anything the HW temp is lower that it used to be although some folk might put that down to external conditions.
The last few weeks I have experienced random boiler lock outs on the 100e model. Not frequent but say once or twice a week. The boiler is in the loft unfortunately so it is impossible to tell exactly when the lock out occurs and if it associated with HW or heating etc.
However, what I found yesterdays was that at times (not always) when their is a central heating demand the boiler is 'stopping and starting' every couple of minutes automatically. This can go on for indefinately and rads are still hot but if you click off using the thermostat, the demand light goes off but the boiler sounds like something is going on inside and then a few seconds later it locks out. Initial restart is not then possible unless the boiler is switched on when a hot tap is running - if you then close the hot tap the boiler then kicks in to central heating mode.
Any suggestions gratefully appreciated.