Have I blown up my boiler timer

[scoobydo123]

Hi was updating the roomstat to a digital one and wrongly wired the new thermostat

This caused the fuse to blow in the timer supply. I then put everything ack to how it was and replaced the fuse but now the CH is always on according to the light on the controller and the pump is running constant.

Attached is a picture of the controller and the thermostat, timer is a Landis and Gyr RWB2 and the thermostat satchwell TLX 2259

I wrongly used the blue and brown on the common and NC connection on the new timed thermostat.

Is it goosed?

Attached are photos for clarity

If it makes any difference it is a gravity fed system, if goosed do I need to watch which new timer to get?

Untitled

• scoobydo123
• 21 Mar 2011
• 1

Untitled

• scoobydo123
• 21 Mar 2011
• 1

 

[Boilerman2]

You have caused the contacts to become welded on the programmer CH Relay...or put another way the RWB2 is "Goosed" (is that an Essexc saying?!!)
You can still buy RWB2 controls and given that you have Gravity HW then there is no point in spending on a more expensive Electronic model
The Room stat should be OK though the TLX 2259 is just about bomb proof!

 

[scoobydo123]

Ok thanks for the quick reply, will get a digital one which I will be able to re-use when I update the system in the future. Grasslin QE2 looks good with 28 memory locations and seems to be cheaper than the analogue ones.

Question is if I had not been a numpty and got my meter out would I have been able to get my new digital roomstat working. What did I feed back to the programmer should I have left the blue wire off and taped up?

 

[Boilerman2]

THe Blue wire should be disconnected in the stat AND and the other end i.e. Junction box or programmer it is not acceptable to leave a cable with potential "taped up"

 

[scoobydo123]

Doh 1 minute with the meter would have saved me having to get a new programmer.

 

[misterdubya]

Doh 1 minute with the meter would have saved me having to get a new programmer.

Yes it would. Why on earth dont people test before diving in?

Mr. W.

 

[scoobydo123]

Fixed

One new micro switch installed have tested with a meter and now all good.Will install tomorrow and let you know if normal service has resumed. Was a pit of a pain on the mechanical side but got there in the end

 

[scoobydo123]

Yep all up and running (un-goosed).

Thanks given to boilerman2.