How to mend ... Heat Only Boiler

Why when my boiler is on 'Water only' is my heating coming on?

My boiler is the Glow Worm - Space saver MK11 and is currently on water only, as we don't need the radiators (... [Read more]

Potterton Netaheat 10 16 intermittant ignition?

Hi, Boiler is about 15 yrs old. It has suddenly started to act very strangely i.e. Switch on = ignites pilot ... [Read more]

Can the Heat Exchanger in a Baxi Solo II PF80 wall mounted boiler changed?

It looks as though my Heat Exchanger has corroded through and is now leaking water. Is the heat exchanger for... [Read more]

FAO Bobby Rob re sime friendly combi boiler?

you seem to know what you are talking about re sime boilers, can you help me with this one? i have a sime fri... [Read more]

Euro combi - Red light keeps coming on and cutting off boiler?

I have a Euro combi boiler and the red light keeps coming on and cutting off when in central heating mode and ... [Read more]

new heat exchanger?

Heat exchanger os leaking water when boiler is turned on

worcester-bosch 24cdi combi boilerwill not heat water?

my boiler heats the radiaters but will not heat water,we cannot get it to fill up its pressure is reading 3 li... [Read more]

vokera mynute 14se?

my boiler fire's up when not calling for heat or hot water and my pump is always runing, engineer has changed ... [Read more]

Sime Friendly Format 80e - Heat but no hot water?

Can anybody tell me how to fix my sime friendly format 80e. The heating side of it is working perfectly fine, ... [Read more]

Potterton Ultra 2 BOiler problem?

My boiler and pump starts and runs for several minutes, or longer. Then it stops and goes into lockout. If I t... [Read more]

Central Heating won't heat radiaters but do have hot tap water?

I have an Optima 700 boiler/central heating system. When I turn up the room thermostat it clicks but the boile... [Read more]

No CH with Potterton Puma 80?

I have a problem with a Potterton Puma 80 in that the CH does not appear to be working and there is no heat go... [Read more]

Would the level of the return pipe cause banging pipes?

We rescently had a new Burnham Boiler installed for a steam heat sysem. Since the installation we have had mor... [Read more]

can i fit a 2 port valve to a gravity feed heating system?

Hot water is gravity fed through the boiler and through the coil in the hot water tank to heat the water. The ... [Read more]

potterton puma 80 combi boiler?

boiler on but will not heat water or central heating - when switch tap on starts heating water and then starts... [Read more]

Boiler works but doesn't get CH to required temp?

My Alpha 240E boiler will produce hot water and some heat for central heating but it goes on for a bit then st... [Read more]

what is wrong with my worcester 15/19 combi boiler?

we put the water on and the radiators heat up - we cannot run enough hot water for a bath even if the water is... [Read more]

Potterton Netaheat - pump is on when system is off?

I have a Potterton Netaheat boiler - (not sure of the model number). This morning, although the system was tu... [Read more]

Why does the hot water on my Ravenheat boiler sometimes come out cool?

A Ravenheat 820/20 combi boiler, had diverter valve diaphragm replaced last year as it had perished, now occas... [Read more]

vaillant hot water problems?

got vaillant 828 turbo plus 3y old.hot water slow to cut in sometimes takes 20 mins sometimes 10 secs,have fit... [Read more]