How to mend ... Heating System Programmer

combi oil Worcester greenstar heatslave 12/18 switches off?

I have a internal combi oil Worcester greenstar heatslave 12/18 Its has a built programmer and Hot water t... [Read more]

siemens rwb9 connections to boiler?

I have a SIEMENS RWB9 central heating programmer. I am wanting to know the wiring layout for the connection to... [Read more]

Why does my Trianco Eurostar oil boiller not run the hot water system?

I have a 15 year old Trianco Eurostar oil burner with a built-in Horstmann timer and additional hot water tank... [Read more]

Boiler wont switch off?

I have a British Gas/Glow worm 330HE boiler fitted in 2006. Over the last few months a fault has been occuring... [Read more]

Problem with Worcester Heatslave 20/25 Programmer?

I have had three programmers fitted to my system for one reason or another. This one seems to be causing the ... [Read more]

Boiler wont switch off?

I have a British Gas/Glow worm 330HE boiler fitted in 2006. Over the last few months a fault has been occuring... [Read more]

Potterton EP2001 Central Heating Programmer Fault?

Programmer is in off position but Hot Water is being supplied to the tank. Only way to switch off hot water to... [Read more]

Potterton Programmer not controlling stat?

I developed a fault on my Potterton system as a direct result of trying to change the in room stat (Potterton ... [Read more]

Fault with ideal isar he 30?

My ideal isar he30 boiler keeps on heating the system when the programmer is off and goes to the preheat for t... [Read more]

isar HE30 no display on user control?

The display on our isar he30 user control is blank. The heating and hot water still works so I'm not so sure i... [Read more]

Heating programmer continuously flashing and clicking?

Went on holiday for almost a week and decided to switch timer off. When returned and switched it back on just ... [Read more]

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]

Central heating stops after about 2hrs running?

I have an Ideal Mexico Super RS 80 boiler which seems to run the heating system for about a couple of hours wh... [Read more]

Baxi Bermuda 401 ?

having just fitted a new electrical programmer after old one kept clicking and flashing and not lighting up ce... [Read more]

heating is erratic sometimes on then goes off fitter says system is overhea?

fitter seems to think system is overheating due to eitherpump grundfos1550 or programmer honeywell st699 being... [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]

Help! Someone with wiring knowledge of Potterton EP6002 out there?

I have the above programmer installed on my system several years ago.Recently the heating programme has failed... [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]