How to mend ... Help Heating Hw

low water temperature os my saunier duval SD623 boiler?

ow water temperature os my saunier duval SD623 boiler? the heating works ok but the hot water is not very h... [Read more]

greenstar 24i. No hot water?

No hot water delivery, the boiler kettles on the main heat exchanger with HW demand. Central heating demand n... [Read more]

fix Worcester 350 combi boiler ?

I have a Worcester 350 combi. Heating operates fine. Hot water runs fine except for the shower. Think reduced ... [Read more]

c h boiler heats HW supply only,no central heating?

My system is a fully pumped central heating installation, with room & cylinder thermostat. Could the motorise... [Read more]

No heating, but Hot Water works fine Vaillant VuW 242 failure: F.28 ?

In my case F.28 comes ONLY if heating needs to start. If I open the hot water tap during CH ignition attempt,... [Read more]

Problem with my potterton 2000 programmer?

The HW constant switch will turn the boiler on but I have no central heating as the CH constant switch has no ... [Read more]

Pressure reducing on my Bosch Worcester 24 CDi Combi Boiler?

A few months ago i had problems on my boiler with 'rising' pressure. This turned out to be the Heat Exchanger ... [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]

changing heating programmer?

trying to change a broken programmer on a thorn apollo to a drayton lp112, just cannot work out which wires ar... [Read more]

Worcester Bosch 35CDi II banging & wild pressure (CH only)?

Hi, just recently our Worcester Bosch 35CDI II boiler has been making worrying noises After 30 seconds or s... [Read more]

Sime super 90 plus problems?

Hi, We have a super Sime 90 plus boiler and about a year ago we had to change the dreaded diaphram in the dive... [Read more]

Potterton Profile 100 CH but no HW?

My boiler seems to fire up ok, do the central heating ok, but there is no hot water at the taps/shower.

Thorn EMI Apollo boiler why want it heat my radiators?

my boiler is not heating my radiators just giving me hot water the settings r set 4 hw&ch ?

How can I fix my Potterton EP2000 programmer?

The CH and HW letters keep flicking on and off when the heating comes on which is turning the bolier on and of... [Read more]

Baxi Bermuda 522?

Have a baxi bermuda 522 back boiler , heating working upstairs but not down stairs , pump seems to stop but he... [Read more]

Worcester Bosch Highflow 400 rsf boiler problem?

I have a problem with my Worcester Bosch Highflow 400 rsf boiler. If hot water is on, I cannot get central hea... [Read more]

no hot water from halstead ace high 47-333-16 HW/CH boiler?

i am unable to get the hot water to work but i do have working central heating. The boiler seems to fire up b... [Read more]

Vaillant 282 water pump runs continuously?

Pump runs all the time when either hot water or/and central heating is switched on. During winter holidays I l... [Read more]

Ideal Icos Boiler, Heatrae Sadia CL170, Reliance Pressure gauge?

My CH/HW system consists of the above components plus a room thermostat and control panel beside the boiler. A... [Read more]

Boiler only firing for 5 seconds?

It is a Chaffoteaux Combi 80 and in hw or heating mode it fires for about 5 seconds then goes out it and does ... [Read more]