How to mend ... Ch Problem Central Boiler

Sime Super 90 MkII fails to ignite 'sometimes'?

My boiler 'sometimes' fails to ignite. I have my boiler on timer early morning / late evening and notice somet... [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]

how to solve potterton flowsure+ problem?

Hi, i have a ten year old combi boiler. the central heating side of it seems to have gone a bit bonkers....its... [Read more]

can anyone help- Domina 80E CH fault?

I can get hot water easily and constantly but the central heating doesnt work properly. The CH comes on when i... [Read more]

Domina 80E CH fault?

I can get hot water easily and constantly but the central heating doesnt work properly. The CH comes on when i... [Read more]

Halstead Ace High boiler central heating cuts out before thermostat tempera?

Hi, my Halstead Ace High boiler central heating cuts out before thermostat temperature. Hot water works fine a... [Read more]

potterton EP2000 (old brown one) problem - CH always on ???

I have a Potterton EP2000 - problem is when i try to put the HW slider on any setting i.e twice/ once/ 24hrs, ... [Read more]

ace high boiler problem?

replaced diaphram and diverter valve service kit , ch working ok , in dhw only mode both central he... [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]

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]

Isar HE30 problems?

We have the Ideal DH30 Isar combi heater. I am having a problem with it recognising the thermostat for the c... [Read more]

potteron profile 100e, hot water, no central heating ?

can anyone shed some light on the matter? we have no problem with the DHW system, but we have no CH at all. Wh... [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 central heating on demand?

when i select CH boiler fails to ignite but when i select just HW i get hot water and central heating is th... [Read more]

Rayburn Driven Central Heating Problem - Upstairs Cold?

I have a Rayburn Gas CH system with a seperate pump. The cooker / boiler is in the basement kitchen with 3 ra... [Read more]

Worcester 24i RSF Junior - Water Flow Switch Melted!!?

Hi, had a few probs recently wi boiler, new Gas Valve & new PCB within last 2 months seemed to have sorted it.... [Read more]

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]

Hot Water but no Central Heating?

Hi - I have a Glow-worm Hideway. I have a control box/timer which controls both HW and CH. I usually have the ... [Read more]

Hot water ok but what's wrong with central heating?

That time of year to turn on central heating. Hot water been working fine all summer, tried CH today but no jo... [Read more]