Hi folks, my first post here.
My wife's folks have a Gas CH fully pumped system to which has been added a Danfoss BEM energy manager.
For some while they have had a problem with the pump continuing to run while the boiler is timed off.
I have checked that the pump is in fact getting its feed from the BEM by disconnecting it while the boiler is off, so that I know that it is not picking up a feed from elesware. in addition I have checked the sensors by means of the test points TP4/TP7 and TP3/TP7 and got sensible values. 22deg C outside and 45deg C return.
I have also switched off the pump over run timer switch which stops the pump the instant the boiler cycles off.
I can set the boiler timer to switch off the system and the pump stops but some time later it starts again even though the boiler is timed off.
This has only started since a thunder storm a while ago and it is possible that the unit has been damaged. However if any one has any suggestions I would be most gratefull.
Also if any one knows where I could obtain a replacement or an alternative that would also be most useful
My wife's folks have a Gas CH fully pumped system to which has been added a Danfoss BEM energy manager.
For some while they have had a problem with the pump continuing to run while the boiler is timed off.
I have checked that the pump is in fact getting its feed from the BEM by disconnecting it while the boiler is off, so that I know that it is not picking up a feed from elesware. in addition I have checked the sensors by means of the test points TP4/TP7 and TP3/TP7 and got sensible values. 22deg C outside and 45deg C return.
I have also switched off the pump over run timer switch which stops the pump the instant the boiler cycles off.
I can set the boiler timer to switch off the system and the pump stops but some time later it starts again even though the boiler is timed off.
This has only started since a thunder storm a while ago and it is possible that the unit has been damaged. However if any one has any suggestions I would be most gratefull.
Also if any one knows where I could obtain a replacement or an alternative that would also be most useful