How to mend ... Heating System Programmer

siemens RWB9 Programmer Fault?

i have a fully pumped system with zone valves , one for heating and one for hot water, my problem is that when... [Read more]

Converting to Y Plan system?

I am converting my heating system to a Y Plan using mainly Honeywell parts for the wireless room thermostat (H... [Read more]

Problem with my Vaillant eco tech 428?

I have got a Vaillant eco tech 428 heat only boiler which has been installed to a pressurised heating system. ... [Read more]

heating system?

I had a glow worm 24hxi boiler fitted to my existing y plan system using the original controls(programmer,room... [Read more]

No water from hot taps with Vaillant ecoTEC plus 831?

System was installed 3 years ago and has worked well. Last few days we have been running in 24/7 and have low... [Read more]

lp112 programmer is live and display works but is not giving an output to t?

Hi I have been asked to look at a domestic heating system, the boiler is Johnson stanley, the programmer is dr... [Read more]

Programming Honeywell CM921?

Hi: The heating engineer installed this unit during installation of a new boiler. This is a 1 day wireless pro... [Read more]

Why can we only get heating when hot water on also now(Dual programer)?

We recently needed to replace head valve due to pump over run problem.(Boiler is Potterton Profile) On putting... [Read more]

Boiler cutting ouit?

We have recently had a new central heating system fitted, and are having problems, what we have is the boiler ... [Read more]

worcester heatslave 20/25 lock out ?

our boiler worcester 20/25 floor standing oil boiler is on lock out , fuel is in line and enough in tank . the... [Read more]

Potterton Promax 24HE - No Central Heating?

Since the weather turned colder a couple of weeks ago we have been unable to have heating without the hot wate... [Read more]

Oil Heating & Coal Fire?

Can any one help me as I am really mixed up with my system. I have a Rhino oil Boiler and also a coal fire. Wh... [Read more]

No Central Heating - Promax 24 HE?

Hello. I have a similar system to that mentioned above. Since the weather turned colder a couple of weeks ago ... [Read more]

Hot Water But No CH Poterton Neataheat Profile 30e-80e?

In addition the my previous question (with same title), I managed to get the Central Heating (CH) working for ... [Read more]

Hot Water but no CH Potterton Netaheat Profile 30e-80e?

In the last day or so we have noticed that we are getting hot water but no Central Heating (rads are cold etc.... [Read more]

Potterton Promax 24 HE - Heating without hot water problem?

Hi, I have a Potterton Promax 24 HE boiler on a pumped system. Since the start of the recent cold weather I ha... [Read more]

My Radiators heat-up when I have Programmer set to Hot Water Only?

My heating system runs through a Drayton Lifestyle Dual Channel Programmer LP522. Recenty when I selected the ... [Read more]

Fauly Potterton EP200 Programmer?

Even though my programmer is at OFF and the room thermostat is LOW, my heating circuit is on at the same time ... [Read more]

Hot Water System?

Have got a Switchmaster 805 programmer connected to the central heating system, which i have had for many year... [Read more]

how can i fix my EP2001 programmer?

drained central heating to add new rad, didn't turn off electric to programmer and now it doesn't work. Had a... [Read more]