Mend > Home Heating Systems

Ferroli Modena 102 DHW not regulating?

The hot water is always very hot even at the lowest thermostat setting, will it be a faulty thermister or some... [Read more]

biasi combi boiler problem?

combi boiler only heats water intermittently. works fine when heating is on. Any suggestions?

How can I fix my friendly Sime format 80E?

My boiler tries to light up and keeps on making clicks to light up. Fan is working , lights are on but not pil... [Read more]

WHY ARE MY RADIATORS GETTING HOT WHEN I AM ONLY SWITCHING THE HOT WATER ONC?

WHY ARE MY RADIATORS GETTING HOT WHEN I AM ONLY SWITCHING THE HOT WATER ON AND NOT THE CENTRAL HEATING?

HOW CAN I FIX MY VAILLANT COMBI BOILER?

WHEN TURNING ON HOT WATER THE BOILER FIRES UP THEN AFTER 10-20 SECONDS THE BURNER GOES OUT AND THE RED BURNER ... [Read more]

Potterton Netaheat Mik II 10-16 boiler not working?

Potterton Netaheat Mik II 10-16 boiler not working, fan won't come on - could prob be the fan or something els... [Read more]

I am not getting any neons lighting on the glow worm ultimate?

power is going to the boiler but no neons are lighting and the boiler is not going through its lighting sequen... [Read more]

I've got no hot water from my combi boiler?

I've got no hot water from my combi boiler. It's a 'SIME Friendly Format 80E'. The BAR pressure is normal, t... [Read more]

Water pressure very low in my Vaillant turbomax?

Hi, i discovered this morning that i have no hot water. On examination i can see that the water pressure guage... [Read more]

no hot water lukewarm?

i turned on hot tap and it normaly heats up fast but it has stayed lukewarm,how can i fix this.bar pressure is... [Read more]

how can i fix my worcester 24i boiler?

my piolet light has gone out on my worcester 24i combi-boiler so i have no hot water. how do i re-ignite it?

Ive got a 30 year old Vulcan continental boiler ?

Can you tell me where I can get a thermostat for a 30 year old Vulcan continental boiler? I live in the Liver... [Read more]

No drinking water in kitchen?

I have called the water board to check if they've cut me off by mistake and they haven't! I have no cold water... [Read more]

Ferroli Optima 901 Boiler?

Ferroli Combi Boiler Optima 901? Niggling fault which seems to be getting worse. If the boiler is not used... [Read more]

How can I fix my SIME Friendly Format 80E Combi?

The situation is this: No hot water, no on light! When hot tap is opened there no flame, no fan and the pre... [Read more]

Pilot light is on, timer and termostat okay but does not start up?

All seems to be okay but fan does not kick off and boiler does not start. Is there any way to check the circui... [Read more]

pilot light going out when I run a bath?

Hi, I have a Potterton Puma 100 combi boiler which seems to be fine until I run a bath. I'm able to get plenty... [Read more]

how do i relight my pilot in my sime super 80?

the pilot light has gone out in my sime super 80, do you know what the possible problems could be and how do i... [Read more]

fan problem on potterton promax 24he?

i have a potterton promax 24he condensing boiler.the problem is with the fan.on starting the boiler the fan sh... [Read more]

combi boiler 80e & 105e pressure up to 3.5 bars, water leaking underneath?

My combi boiler 80e & 105e (not sure which one) pressure was up to 3.5 bars with water dripping slowly underne... [Read more]