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Mend Siemens RWB9 Fault System Zone

siemens RWB9 Programmer Fault?

i have a fully pumped system with zone valves , one for heating and one for hot water, my problem is that when the controller is in the off position for both heat and water the pump still keeps running and there is still a power light on the boiler which it never did before

Steve S
October 2012
SiemensSiemens RWB9Heating, Home Heating SystemsFault System Zone
Got exactly same problem....when both hw and ch in off position water heater comes on with a mind of its own.....Have replaced programmer but still got the problem....PLEASE HELP

LMS
November 2017
Get another timer comp table to replace the one you got no need to rewire

ltd
October 2012

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