How to mend ... Programmer Replaced Heating

ideal w rs460?

Hi there' im a electrician and have been asked to replace a programmer for this boiler ideal w rs460 which wa... [Read more]

New replacement Netaheat profile pcb not working?

What is the problem my new replacement pcb will now not work without me banging or jolting it then it sparks u... [Read more]

How can I fix my Drayton Digstat RF roomstat?

My Drayton RF1 wireless room stat is no longer turning the heating on & off. I have replaced the batteries (a... [Read more]

Boiler firing up when programmer says off, and themo down?

Hey, My programmer (potterton) has been set for my hot water and heating to come on for a few hours each m... [Read more]

Central heating confusion?

I seem to only get hot radiators while my boiler heats my hot water but as soon as that get to temprature even... [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]

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]

new programmer fitted?

i have replaced my old honeywell programmer with a new grasslin QE2 programmer and now i have no heating

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]

heating still wont work ?

i have replaced the programmer the 3 port valve and the room stat and the heating still wont work the boiler a... [Read more]

Circulator pump. Can water pass through it when the pump is switched off?

Does a central heating water pump itself prevent water flowing through to the radiators by gravity? This may ... [Read more]

Micron 40ff heating up then cooling right down before starting up again. ?

Please help I have a Micron 40ff with radiators with TRV's & a room stat, I replaced the old style PCB about 3... [Read more]

How can I fix my Potterton Puma 100?

I have a Potterton Puma 100 which keeps closing down. I seem to cure the problem for a while but then it shut... [Read more]

not going to mid position on valve?

when I replaced the actuator on the mid position valve and controler I found that I could get heating and i co... [Read more]

How can I fix my worcester bosch 28i?

Hi My worcester bosch 28i combi boiler packed up(4 yrs old) so I took a look and found fuse 1 had blown. Afte... [Read more]

Why doesn't my worcester 350 give hot water?

I have a worcester 350 combi boiler and programmer. It recently decided to stop delivering hot water. When a h... [Read more]

how to rewire from scratch my central heating system?

we have a baxi bermuda back boiler central heating system that is twenty years old now. we have replaced the p... [Read more]