Burner Indicator

[dschlenz]

Hi All

I have a Worcester Bosch 40CDi and I'm a bit worried its not working as designed. I have set my thermostat to 20 degrees on a timer and as expected when the temperature goes below 20 degrees in the correct time slot the Burner Indicator comes on and the radiators start to warm up. The weird thing is that the Burner Indicator goes off before the thermostat reaches 20 degrees? If I watch the boiler for 10 minutes or so then the Burner Indicator will come on again and then go off again a few minutes later, this will continue and the thermostat will rarely get to the desired temperature of 20 degrees.

Is this normal?

Should the Burner Indicator be on constantly until until the desired temperature is reached?

Thanks, Daniel

 

[dschlenz]

Had trouble posting yesterday so it duplicated.

 

[cross thread]

no it switches on and off as required

 

[Agile]

The boiler burner goes off when it cannot keep the heat output within the modulating range of the boiler.

This is probably because you do not have many rads although it could be because the boiler gas settings are not correct.

Tony

 

[dschlenz]

I have 13 radiators, none of which have individual thermostatics valves. The house is approx 1700 square feet.

I only moved into this house recently and my first quarterly gas bill was £750 so I reduced the dial on the boiler from the max setting to 3 thinking that might help. Obviously need to find the balance between heating the house and not breaking the bank so I've now increased the dial to 5, not sure if I'm going about this the right way?