How to mend ... System Understand Boiler

minimal heat from radiators and hot water system?

Since turning the heating back on our hot water has cooled down to minimal heat and the radiators do not get h... [Read more]

Aqualisa Quartz digital - low shower pressure?

My plumber has fitted a new Quartz shower to my mains pressure system. The old shower - Aqualisa worked very w... [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]

worcester highflow 400 electronic - hot water question?

I have just bought a property with the above heating system. I understand this is a combi boiler, however in t... [Read more]

my worcester bosch 40 cdi boiler has error code SE or 5E Question?

my worcester bosch 40 cdi boiler has error code SE or 5E, after low pressure. Can anyone tell me what this mea... [Read more]

Which Way to Jump?

CENTRAL HEATING CALAMITY It may sound a bit dramatic, but I have a real problem and would welcome any help ... [Read more]

Baxi Combi 105 HE condenser boiler pump question?

Can any one point me in the right direction with regards to the pump operation after the CH shuts down after b... [Read more]

How can I fix pressure loss on my Worcester Bosch 28CDi?

Hello, For some time now, there has been a constant loss of pressure. Quite by accident dripping was seen in ... [Read more]

The return pipe is hotter than the flow?

Hi I have recently installed a glowworm flexicom system boiler 18sx, and i have discovered that the return p... [Read more]

Why does my boiler not turn off?

Hi. I have a Potterton Ultra DV40 boiler and also a Megaflo unvented water heater. When the boiler is heating ... [Read more]

Over-pressurised combi boiler system - help!?

Trying to re-pressurise my Sime Super 90 Plus, I opened filling loop valve and let water in to 1 bar pressure.... [Read more]

Potterton Suprima 30 Boiler problem?

Recently moved into a house that has a Potterton Suprima 30 boiler, house is about 10 years old. When i fir... [Read more]

How can I repressurise our SIME Super 90 Mk II?

We need to repressurise our SIME Super 90 Mk II as our central heating system will not fire up. Our hot water ... [Read more]

Heating Fault - Pump continually runs (Maxol microturbo 402)?

I have a Maxol microturbo 402 domestic boiler that is used for the central heating and hot water in my home. T... [Read more]

why is my boiler filling with water when not in use. (gas fired,steam heat?

why is my boiler filling with water when not in use. (gas fired,steam heat ). Endless buckets must be emptied... [Read more]

Ferroli Optima 901 -occasional Hot water problem?

Hi I have a Ferroli Optima 901 combi boiler and have recently been experiencing occasional problems with no ho... [Read more]

My Potterton Performa 24, No Hot water, NoHeating?

Hello, just moved in and I was trying to understand why I was only getting luke warm waterfrom my boiler. I wa... [Read more]

Ferroli Optima 901 -Intermittent Hot water problem?

Hi I have a Ferroli Optima 901 combi boiler and have recently been experiencing intermittent problems with no ... [Read more]

Ferroli Optima 901 -Intermittent Hot water problem?

Hi I have a Ferroli Optima 901 combi boiler and have recently been experiencing intermittent problems with no ... [Read more]

Netaheat 80E goes on/off?

I have a Potterton Netaheat 80E. As far as I understand the beast it is a gravity system and has been serviced... [Read more]