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Hello fellow forum goers, I'm in a bit of a pickle here, I have a Vaillant Eco tec Plus 837 boiler in the house, installed some time ago along with a Siemens RDJ10 RF thermostat and RCR10/433 reciever to the boiler. For the boiler I have both the service manual and owners manual, but...

s31 is status code I am getting. 'central heating thermostat knob turned off or no heat demand by the ebus control unit. on the RF transmittor there is heat demand - but for some reAson not pairing with the reciever ... I hope its just the the batteries in the remote/transmittor...

Hi PPL the issue has come back again..where a the command from the RDJ10RF reciever is not being sent to the reciever that is attached to this boiler hence when a command for heating is made the boiler does not come on to provide central heating..... I have once paired the RF thermostat...

Hi thanks for quick reply.. I have sorted the problem out. the thermo stat controller - and reciever were not talking to each other so any attempt made to put the heating on using the thermostat adjuster thing failed... so pairing the two device together has worked...fingers crossed...

Hi I have an issue with my valliant pluse 837... I have warm and hot heating - when the taps are turned on ...but when trying to turn on the central heating via the remote control which we have the heating does not coming as per normal... the IR controller we have is Siemens RDJ10RF...