How to mend ... Ch Hw Second

My boiler pump runs continuously and fires even when timer switch is off?

The zone valves have been replaced but boiler still fires after the CH and HW is switched off and the over run... [Read more]

Hot water from boiler filling expansion tank?

I have an old type CH/HW system with storage cylinder in airing cupboard and Bermuda 552 back boiler. I notice... [Read more]

Worcester Greenstar 28i - Heating and hot water will not work at same time?

I can't get the CH & HW to work at the same time for some reason. They work seperately but not together. I s... [Read more]

both my Central Heating and Hot Water not working?

Hi, I tried to reset my boiler but now it wont work at all. I cant get either HW or CH. plz help

My chaffoteaux britony 100se combi fails to light in CH mode?

My Chaffoteaux Britony 100se combi fails to ignite in CH mode, it works fine in HW mode!?! When I select CH... [Read more]

CH but no HW Ferroli he 38c?

CH but no HW. No error codes HELP

what is fault?

ive got a Ideal Isa 30 when CH is on canot draw HW until I reset boiler

Potterton Ep3000 timer not working?

I have a Potterton EP3000 and the CH & HW in airing cupboard & the switches no longer seem to be working. Disp... [Read more]

Sime Halstead Trio 30/90 - Main Burners are taking too long to fire up?

Everything seems fine; Pump is on ; Fan starts; Pilot light come on, Flue is clear but burners are taking some... [Read more]

RE: CH Not working plus select button not working on potterton EP2001?

Hi Guys I have checked the main fuse and it is ok, By the way the CH always comes on with the HW and the HW co... [Read more]

Potterton Prima-donna F - not heating water?

My central heating seems to work fine but there is no sign of hot water. If I turn on the HW only on the contr... [Read more]

Timer to Randall 4033 CH Control Unit Stopped?

The programming of my CH and HW system is controlled by a Randall/Danfoss 4033 unit. I know that being an ana... [Read more]

Potterton Netaheat Boiler stopped working?

Hello, I have a Potterton Netaheat Boiler with Potterton EP2002 Controls and Honeywell Thermostat. Last night... [Read more]

worcester 24 cdi?

have no ch or hw water icon red light is flashing even when you do not open tap

change ch & hw at seperate times?

potterton slider for ch and hw how do i change the hot water from the some time as the ch ?

Potterton FSB HE 30 new July 2009?

Have a howling noise after firing up of boiler. Have had 4 visits from BG...1 new fan fitted, no joy. Also on ... [Read more]

how can i fix potterton prima?

i have a potterton prima boiler which works fine on ch and on ch/hw but when i put it on hw the boiler trips o... [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]

ravenheat boiler - CH works fine, No hot Water?

Hi Guys The CH works fine, But when you want HW the bolier wont fire up you just get cold water and a whist... [Read more]

No ch/hw?

Hi. I have a White Star and am suffering from the no CH or HW situation. First problem was after it was swit... [Read more]