Welcome visitor you can login or create an account.

Express delivery for Thursday Available Until 3pm Today


Express delivery for Thursday Available Until 3pm Today

Enter your email to be informed when this product arrives:

Send Close

Enter your email to be informed when this product arrives:
Send Close

Siemens (Landis & Staefa) RWB2E Programmer

Brand: Siemens (Landis & Staefa/Gyr)
HCO Code: 06D05
Price: £58.68
Ex VAT: £48.90
Stock: In Stock
   - OR -   
Q: I have a RWB2E system which has worked fine for years but for some reason when I now move the switch for the heating to come on twice in the day the system does not now work. Is there a way which the system can be reset or do you have any suggestions on how I can get this fixed??? Thanks

A: If it's working on once and overrides, then it sounds like the system is fine and just the programmer needs to be replaced.
Q: I'm staying in a VRBO unit in London that uses this timer for heat and hot water. While trying to turn on the heat tonight, my daughter turned the timer first clockwise and then counter-counterwise. A ticking sound ensued. I turned the heat and hot water off, and the ticking stopped. Turned the heat back on. Ticking still gone. Turned the hot water on, and the ticking was back. Have we busted the timer??

A: If its got power and not turning, then it sounds bust.
Q: I have a 30 year old Landis & Gyr RWB2. Will the Siemens RWB2E be a suitable straight replacement or is there another option ?

A: Yes, it will plug onto the existing backplate for a simple swap.
Q: Is this interchangeable with a busted Horstmann 425 Tiara?

A: You will need to change the backplate.
Q: I currently have a Siemens RWB29. Can I replace it with a RWB2E to the existing backplate?

A: Yes you can.

Ask a question about Siemens (Landis & Staefa) RWB2E Programmer

Your Name:
Your Email:

Your Question: Note: HTML is not translated!

Enter the code in the box below:

Traditional Daily Programmer
* Complete with new backplate
* Two ON/OFF periods per day
* 1 hour boost facility
* All day option
* LED 'ON' light
* Dimensions: 145x90x50mm WxHxD
* Override facility
* Gravity or fully pumped

Replaces (same backplate and wiring for easy swapover):
Landis & Gyr (Landis & Staefa) RWB1 RWB102 RWB2 RWB2.9 RWB40 RWB200 RWB200cw RWB252 RWB252cw RWB270 RWBXP.
Landis & Gyr Microgyr 1 Microgyr 102 Microgyr 2 Microgyr 40 Microgyr 200 Microgyr 200cw Microgyr 252 Microgyr 252cw Microgyr 270 Microgyr 9 Microgyr XP.
Gloworm (Glowworm) MasterMind
Potterton Miniminder
Sankey Sunline
Crossling Controller


Replaces RWB20 / Microgyr 20 (same backplate) but may require the addition of a neutral connection


Compatible alternatives with same backplate & wiring:
Siemens RWB29 - Top-of-the-Range 7 day digital programmer



Write a review

Your Name:

Your Review: Note: HTML is not translated!

Rating: Bad            Good

Enter the code in the box below:


Heating Controls Online is rated 4.90 stars by Reviews.co.uk based on 1666 merchant reviews

4.90 / 5 Rating
1666 Reviews
Part ordered simply and,to be fair, a price. Delivery fast. Can't fault anything at all. I would definitely recommend.
Excellent service and delivery time.
Excellent price, service and fast delivery. Excellent communications. Recommended!