Mend > Home Heating Systems

1

what is wrong with my ferroli optima 901?

the outside overflow is constantly leaking water and even when the boiler is off it sounds like water is being... [Read more]

2

Why does my Potterton Profile Boiler not fire up?

I hope some one out there can help me to diagnose the problem with my Potterton Profile which will not light.... [Read more]

1

Baxi 105e HW but no CH?

Hi Ive got a Baxi 105e which has developed a CH fault. Hot water works fine but flame will not remain lit whe... [Read more]

2

Intermittent hot water one SIME combi boiler?

I have a sime combi boiler, sorry, I dont know where to find the model number, but the heating (radiators) are... [Read more]

2

how can i fix my combi boiler ravenheat rsf 100?

heating is working fine but when i turn on hot water it keeps goin hot and then cold then hot then cold,can an... [Read more]

3

how to get boiler cover off!?

i have a potterton profile 100e and the pilot light has gone out. i can't even get the front cover off to fin... [Read more]

1

How do I replace flow switch on Vaillant combi. boiler?

The Pressure Differential Switch (Flow Switch) on my Vaillant Combi boiler (VCW T3W Sine 18) only works interm... [Read more]

2

Sime Super 90 losing pressure?

hope some one can help me i have sime super 90 it seems to be losssing presure (about half a bar) after runni... [Read more]

1

Potterton Puma 80e - Hot Water but not heating?

There is hot water coming from the boiler; this has led me to believe that the pump is working and able to pum... [Read more]

1

how do the control dials work on creda electric storage heaters?

I have just moved into a flat with creda storage heaters. I understand the room thermostat but do not know wha... [Read more]

4

PCB for worcester 35cdi mk2 rsf boiler?

Following the fault dianostics, given a fast flashing red lamp, on J flowchart in the owners manua (The fan no... [Read more]

2

How to fix a error E34?

It is Ariston microGENUS HE 28 MFFI combi condensate boiler. Ones it is heat up it shuts down, even if hot wa... [Read more]

3

Vokera Excell. Heating system ok but no hot water!!?

Our boiler is operating ok but we are not getting any hot water. If the boiler is not running,usually it kicks... [Read more]

5

Re Glow.Worm Micron 50FF Fault?

Hi can anyone help with this one, had the above boiler for under 3 years, lately the heating would just turn o... [Read more]

2

Fan noise from Potterton Puma 80 - 100?

There is a constant fan noise coming from my Potterton Puma boiler (either 80 or 100 series). It goes away wh... [Read more]

2

Baxi 105e hot water problem?

I have a pain of a problem with my Baxi 105e. It’s not quite 4 years old, the problem we have is as follows.... [Read more]

1

How can I fix my Vaillant boiler?

How can I re-start my vaillant boiler and what do I do if the "pressure" level is bellow 1? The boiler starts... [Read more]

1

240 combi boiler?

my worcester 240 combi boiler will not supply me hot water on demand but when the heating is on it runs warm,w... [Read more]

1

how can I fix my central heating boiler?

I have a Ferolli 77CF combi bolier 1993. If we turn on the hot water we have to continually hold down the pilo... [Read more]

1

Saunier Duval heating don't turn on?

hot water works fine but heating don't work, its Saunier Duval , i have tried every thing.