Is it possible to overide wall control unit for Worcester Bosch Boiler

[CSW]

Hi,

I have a Worcester Bosch Greenstar 30CDi boiler which was fitted in 2011 with no issues until today.

The heating is controlled by a wall mounted Worcester Digistat, I changed the batteries yesterday and it came back on OK but today I am getting an error code which just says E15 (small 5 or possibly S) non of the buttons are active and removing the batteries and re-inserting has no effect. We have tried to re-set the link between the boiler and the unit but the boiler display gives the displays it should do (as stated in the instructions) but the Digistat either reads Rf when we insert the batteries while holding down + or the error code.

I think we may need to replace the digistat but in the meantime is there any way that we can override the unit and just switch the heating on direct from the boiler (the house is freezing!!).

The hot water is working fine by the way.

Any advice would be much appreciated.

Thanks,
Catherine

 

[footprints]

Please don't take offence, but did you put the batteries in the right way? My neighbour had trouble with a similar stat that was traced to the batteries and I had to look very carefully to find the markings for polarity on the unit, nearly did it wrong !

 

[CSW]

Hi,

Thanks for getting back to me but unfortunately the batteries are in the right way.

Thanks again,
Catherine

 

[ollski]

Is it the digistat with square buttons and slide out battery trays?, often replacing batteries bends the batt contacts.

 

[CSW]

It's one like this:-

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=131980095139#ht_500wt_1282

 

[PK Gas]

Is the reciever built into the boiler or do you gave an external one?

 

[CSW]

It's built into the boiler on the front panel.

 

[PK Gas]

No overide button?

 

[CSW]

No, nothing obvious. I don't think we can do it. My husband phoned Worcester yesterday and got no joy. They said the unit needs to be replaced and said that there is no way to overide (which is pretty rubbish, in my opinion).

I am thinking that maybe the battery contacts are bent. There isn't much on the net about this type of fault but anything I have seen has occurred within hours of changing the battery so by my extremely limited technical deduction it's either something physical, e.g. the battery contacts or the battery change has somehow caused the program to fault, in which case it should be able to be reset.

I'm going to have a look at the battery contacts.

Thanks,
Catherine