vaillant pro 28 boiler not responding to receiver?

[positist]

The thermostat sends a message to the receiver to call for heat, the green led in the receiver comes on to send a message to the boiler to call for heat but the boiler is not responding? Does anyone know what may be wrong? The boiler still works and heats up when switched on manually but i can't programme it to work with the thermostat. Any ideas anyone?

 

[peter the plumber]

have you tried sync the roomstat and reciever.Is it a drayton make.

 

[bengasman]

90% chance the set has lost bonding. You can try to rebond following the procedure in the manual, but it is probably dead. Known drayton problem

 

[positist]

Many thanks for your replies, I really appreciate your help.
It's a Salus - Model RT500RF
Do you think it's definitely a thermostat/receiver malfunction rather than a boiler malfunction? i wasn't sure because the receiver was communicating with the stat, as the green led lit up, requesting a call to heat from the boiler?
If so, Is it worth trying all the different jumper combinations, do you think it may help?

 

[picasso]

press the i button on the front of the boiler, if the display reads "s30" then there is no demand from the thermostat , this means although the green light is on its not communicating with the boiler.

 

[positist]

so if that happens (S30) then is it a stat or boiler problem?

 

[positist]

if it is a stat problem, do you think it is repairable by trying the different jumper positions and changing the RF address codes or does the stat need replacing?

 

[picasso]

if the display reads s30 then the boiler is waiting for a signal from the thermostat/reciever, if the green light is showing on the reciever then the reciever is not sending a signal to the boiler...in other words the reciever is kaput.

 

[positist]

So if i replace the receiver hopefully jobs a gud un! or is it not that simple?

 

[picasso]

change the whole thing for a honeywell,I am not a big fan of salus wireless stuff, although I have to say I do like their programmers.