Boiler recently serviced, has never had any issues. 5 years old. With hot water tank. Have recently bled all radiators.
It comes on three times during the day for 30 mins each. temperature setting on boiler is half way.
Since the last service it sparks up fine but makes these terrible vibration sounds 5 or 10 minutes into the cycle. At the same time you can hear alot of water flow in the boiler.
At this time the water flow LED (RED) flashes fast (5Hz).
The manual states in fault finding 5.1 that this means:
If this occurs consideration should be given to regulating valves on the system to restrict system flow rates
Can anyone recommend how I can go about actioning this? Many thanks in advance.
Descritpion of fault finding below:
http://www.keston.co.uk/assets/pdf/Discontinued/Celsius-25-manual.pdf
(5) The boiler will automatically and continuously adjust its power output and pump speed to best match the demands of the system at any time. In the event the boilers integral pump cannot maintain sufficient boiler water flow to disperse the heat generated the red pump LED will flash slowly (1Hz). If this occurs any system restriction should be cleared. If this persists due to an abnormally high system resistance consideration should be given to an additional system pump. In the event the boilers integral pump cannot reduce the water circulation to ensure the most efficient transfer of heat to the system water the red pump LED will flash rapidly (5Hz). If this occurs consideration should be given to regulating valves on the system to restrict system flow rates
It comes on three times during the day for 30 mins each. temperature setting on boiler is half way.
Since the last service it sparks up fine but makes these terrible vibration sounds 5 or 10 minutes into the cycle. At the same time you can hear alot of water flow in the boiler.
At this time the water flow LED (RED) flashes fast (5Hz).
The manual states in fault finding 5.1 that this means:
If this occurs consideration should be given to regulating valves on the system to restrict system flow rates
Can anyone recommend how I can go about actioning this? Many thanks in advance.
Descritpion of fault finding below:
http://www.keston.co.uk/assets/pdf/Discontinued/Celsius-25-manual.pdf
(5) The boiler will automatically and continuously adjust its power output and pump speed to best match the demands of the system at any time. In the event the boilers integral pump cannot maintain sufficient boiler water flow to disperse the heat generated the red pump LED will flash slowly (1Hz). If this occurs any system restriction should be cleared. If this persists due to an abnormally high system resistance consideration should be given to an additional system pump. In the event the boilers integral pump cannot reduce the water circulation to ensure the most efficient transfer of heat to the system water the red pump LED will flash rapidly (5Hz). If this occurs consideration should be given to regulating valves on the system to restrict system flow rates