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- 7 Nov 2019
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Hi,
I have an oil fired heating system, approx 17 years old.
Its a Warmflow boiler with a Riello oil burner. The unit feeds the radiators plus a Santon pressurised storage water tank.
I have 2 issues.
Occasionally the high level trip activates meaning I have to reset the button.
I have adjusted the dial to about 2 o'clock, then 3 o'clock and 4 o'clock. The boiler obviously cuts out when the thermostat temp is reached, but at these lower settings it seems the boiler is cycling on and off well before the desired house temp is reached. Surely the boiler should stay on until the temperature I set in the house thermostat is reached and then cycle on and off to maintain that heat?
I understand the boiler thermostat is there to prevent the boiler overheating, but why is it cycling on and off way before the house temp is reached, and on occasion, tripping off completely needing a reset? In other words, I suppose, why is it overheating?
Recently, I have had replaced the red expansion tank, had a new Wilo Sonos Pico pump fitted and had a Fernox TF1 filter fitted.
The system was drained down a few weeks ago, cleaner added, run for a few days then drained again, and then inhibitor added and refilled..
None of the radiators are cool, and all heat to very hot when allowed too, they also bled correctly and there is no sound of air in the system so I don't think there are any issues there.
The expansion tank shows just under 1bar when cold, and about 2 bar when hot.
Ive checked every valve etc and everything is functioning externally as it should, yet my boiler still seems to be overheating?
Can anyone advise what might be causing the boiler overheat?
I have an oil fired heating system, approx 17 years old.
Its a Warmflow boiler with a Riello oil burner. The unit feeds the radiators plus a Santon pressurised storage water tank.
I have 2 issues.
Occasionally the high level trip activates meaning I have to reset the button.
I have adjusted the dial to about 2 o'clock, then 3 o'clock and 4 o'clock. The boiler obviously cuts out when the thermostat temp is reached, but at these lower settings it seems the boiler is cycling on and off well before the desired house temp is reached. Surely the boiler should stay on until the temperature I set in the house thermostat is reached and then cycle on and off to maintain that heat?
I understand the boiler thermostat is there to prevent the boiler overheating, but why is it cycling on and off way before the house temp is reached, and on occasion, tripping off completely needing a reset? In other words, I suppose, why is it overheating?
Recently, I have had replaced the red expansion tank, had a new Wilo Sonos Pico pump fitted and had a Fernox TF1 filter fitted.
The system was drained down a few weeks ago, cleaner added, run for a few days then drained again, and then inhibitor added and refilled..
None of the radiators are cool, and all heat to very hot when allowed too, they also bled correctly and there is no sound of air in the system so I don't think there are any issues there.
The expansion tank shows just under 1bar when cold, and about 2 bar when hot.
Ive checked every valve etc and everything is functioning externally as it should, yet my boiler still seems to be overheating?
Can anyone advise what might be causing the boiler overheat?