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- 27 Jan 2017
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Hi,
I have a Grant vortex eco oil boiler which as a Riello RDB burner. My problem is the boiler keeps cutting out. Once up to temperature the boiler runs for about 2-3 minutes then cuts out for about 3 minutes before starting up again. The pump keeps running during the cut out time.
From what I can make out, it is either the high temperature thermostat on the boiler or the boiler is set too high and the pump therefore does not take the heat away quickly enough. The boiler is about two years old as is the pump - a Grundfoss. The pump is set on highest speed, and there is always at least one radiator which has it's TRV set to fullly open.
Does anyone have any ideas on this? If the boiler really is set too high, is it possible for it to be adjusted by a DIY person or is this a plumber job? There is a dial on ths front of the burner, currently set to 3. Can I adjust the heat output by altering this, and will doing so change the burn mixture? Would this be a possible solution to my problem. The burner is rated from 19.2 - 33.5 kW so it seems there is a wide range of adjustment.
K
I have a Grant vortex eco oil boiler which as a Riello RDB burner. My problem is the boiler keeps cutting out. Once up to temperature the boiler runs for about 2-3 minutes then cuts out for about 3 minutes before starting up again. The pump keeps running during the cut out time.
From what I can make out, it is either the high temperature thermostat on the boiler or the boiler is set too high and the pump therefore does not take the heat away quickly enough. The boiler is about two years old as is the pump - a Grundfoss. The pump is set on highest speed, and there is always at least one radiator which has it's TRV set to fullly open.
Does anyone have any ideas on this? If the boiler really is set too high, is it possible for it to be adjusted by a DIY person or is this a plumber job? There is a dial on ths front of the burner, currently set to 3. Can I adjust the heat output by altering this, and will doing so change the burn mixture? Would this be a possible solution to my problem. The burner is rated from 19.2 - 33.5 kW so it seems there is a wide range of adjustment.
K