How to mend ... Boiler Keeps Over Heating

My modena 80e boiler fails to ignite?

I have to keep reseting my Ferolli modena 80e boiler. When the boiler tries to ignite for the central heating... [Read more]

What is little plastic cap on an automatic air vent for?

I understand automatic air vents like the one used next to the boiler in my domestic heating system work by ha... [Read more]

Baxi Bahama 100 - Hot water problem?

Hi there to anyone who can possibly help me with the above problem. The boiler works fine for central heati... [Read more]

High pressure on my Optima Ferolli 901 central heating?

Hi, I have a Ferroli optima 901 . I had problms with the DHW and foolishly adjusted this on the mod gas valve... [Read more]

Problems with Ravenheat Combi RSF Fanned?

Boiler has no markings on, but have manual that says... Fanned Combi RSF 84E - RSF 100E RSF 84ET - RSF ... [Read more]

baxi 80 e?

i can no longer get hot water from my bathroom sink (which is located next to boiler )bath shower and kitchen ... [Read more]

my central heating pump does not turn itself off when boiler turns off?

we have a grunfos central heating pump that does not always turn itself off after the boiler has been turned o... [Read more]

problem with my boiler?

Can you help i have a potterton puma 80 boiler the hot water works perfectly but i cant seem to be able to get... [Read more]

how can i relight my sime 30/90 halstead boiler?

how can i relight my sime 30/90 halstead boiler the light is out when i trun on for heating or hot water and w... [Read more]

GLOW_WORM SPACE SAVER MK11?

HI, The above boiler works fine, but when I switch the dial to W-ON & H-OFF. The heating still stays on? ... [Read more]

Ravenheat csi 120 low nox?

I have a Ravenheat Low Nox boiler that has been working fine for 2 years, but last night the central heating f... [Read more]

sime friendly format 80e?

no hot water , boiler will not fire when hot tap is opened , heating works fine, hot water will work but only ... [Read more]

Sime 90 slow start?

My boiler was serviced last December and was working normally. Now it takes up to a minute to ignite when hot... [Read more]

Worchester Bosch 280 RSF will not supply DHW?

My boiler works OK when used on CH, but will not supply DHW when the boiler is cold, if the boiler has been he... [Read more]

My (9 year old) Vaillant combi boiler has just stopped producing hot water?

My boiler has just stopped producing hot water. The heating still works, but the hot water will not kick in. A... [Read more]

how can i fix my ravenheat combi boiler?

red light next to spanner symbol has come on and now got no hot water or heating any ideas how to sort problem... [Read more]

my boiler wont fire up?

wont fire up on heating and hot water 240v present at fan for a second then 0v is this a pcb i need to replace... [Read more]

Potterton Suprima 50?

I have a Potterton Suprima 50 boiler and the red light keeps staying on permanently (not flashing) and the gre... [Read more]

My Central Heating not working but I am getting hot water?

The Potterton Puma 80, fires up when the hot water demanded however just recently the central heating does not... [Read more]

Should my combi boiler come on when the cold tap is used..??

I have recently had a Glowworm combi (30cxi) installed - everything appear to be working fine, but I have noti... [Read more]