Hi,
My boiler is cycling on/off approximately every minute & has been since I moved into the house.
System info:
Glow-worm UFB60B Boiler supplying open-vented system.
Expansion & feed pipe within 6" of each other, about 3' from boiler flow.
Grundfoss pump.
Bypass.
3-way valve supplying rads & cylinder.
System has been cleaned, descaled & flushed.
Would this be due to water flow, the pump is set at it's second speed & I have tried turning it up flat-out with no difference.
I know that it's not blocked or sludged rads because firstly there is the by-pass and secondly it also gives the same symptoms when calling for hot water only.
Any suggestions?
Regards
Dave.
My boiler is cycling on/off approximately every minute & has been since I moved into the house.
System info:
Glow-worm UFB60B Boiler supplying open-vented system.
Expansion & feed pipe within 6" of each other, about 3' from boiler flow.
Grundfoss pump.
Bypass.
3-way valve supplying rads & cylinder.
System has been cleaned, descaled & flushed.
Would this be due to water flow, the pump is set at it's second speed & I have tried turning it up flat-out with no difference.
I know that it's not blocked or sludged rads because firstly there is the by-pass and secondly it also gives the same symptoms when calling for hot water only.
Any suggestions?
Regards
Dave.
