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Mend Heating System Programmer

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We have 60 questions about mending 'heating system programmer'

How to mend ... Heating System Programmer

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Central Heating not coming on ?

Only get the central heating to come on when running the hot water,it's an old system with pre- lagged cylinde... [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]

Hot water but no heating?

Hi i have a fully pumped two valve system which until recently has been working reasonably well, I say reasona... [Read more]

What are the symptoms of a faulty boiler stat ?

My boiler seems to be running for very short periods and the central heating hot water is not getting to the f... [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]

Heating works but no hot water?

I have an Ideal Icos HE15 Heat Only boiler which is about 2 years old. Last week the hot water stopped work... [Read more]

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Heating system not working correctly?

My central heating system is causing me problems. The boiler fires OK, but I can only get hot water. The centr... [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]

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