How to mend ... Replace Combi Boiler

converting to sealed system?

Would it be advisable to convert my heating system to a sealed type? The reason I ask is my boiler often makes... [Read more]

no hot water from oil boiler?

Worcester combi heatslave 15-19 oil boiler no hot water only when i do some fiddling about with the controls! ... [Read more]

condensing combi boiler potterton performa 30 HE?

The three way valve is faulty. Domestic hot water runs cold for ages before heating up. Can I repair the val... [Read more]

Hot Water gets teppid but not warm heating ok?

I have a Ravenheat RSF100 ET Combi Boiler. had to strip down to repair water leak. Put back together, Fan work... [Read more]

The hot water sensor on ferroli Optima 901 keeps needing to be replaced?

I have had to replace the hot water and also heating sensor on our Ferroli Optima 901 combi boiler several tim... [Read more]

Diverter Valve Replacement?

Hi, I am going to attempt to replace the diverter valve on my Vaillant Turbomax 824E Combi Boiler. I have... [Read more]

Hot water problem in my combi boiler?

My combi boiler works fine in central heating mode. When in hot water mode, however, it fires intermitently so... [Read more]

Thermal rating?

What is the thermal rating of Saunier Duvall 620 combi boiler.Looking to replace it

diverter valve replacement ravenheat rsf820#20?

is it a d.i.y job to replace a diverter valve on a ravenheat rsf820/20 combi boiler?

baxi combi instant 105e expansion vessel?

Is it possible to fit an external vessel as i have lots of room below the boiler and if the expansion vessel g... [Read more]

how do I sort out a digistat+3 thermostat that is malfunctioning?

I moved into a new build property and have a Drayton Digistat+3 thermostat and for the past year it has fa... [Read more]

replacement boiler conundrum?

I have a 26year old Vailllant sine combi boiler that to date has been very good but is now beyond economical r... [Read more]

baxi combi 80e hot water ok - not so ch - no heating for ages?

I have a baxi combi 80e boiler and have no complaints with hot water but am having real trouble with the ch. T... [Read more]

how to repair valliant ecotec 837 plus?

how to replace the water pressure switch on my valliant combi boiler?

Ariston Eurocombi boiler fails to fire?

Hi I have an Ariston Euro Combi boiler. For some time the burners have been slow to fire up on demand (on bot... [Read more]

Glow worm 35 ci combi dripping ?

Hi i have recently replaced a broken bleed valve on a radiator which caused the pressure in the boiler to redu... [Read more]

how can i fix my ideal isar m30100?

i have a ideal isar m30100 combi and, led diagnostic display is flashing LF,which in the manual indicates to r... [Read more]

Ravenheat combi boiler continually firing then shutting down?

My 3 year old Ravenheat CSI 85A combi boiler developed the following fault: Firstly, the domestic hot water w... [Read more]

how do i replace the heating thermostat worcester 20/25?

Boiler thermostat for worcester 20/25 heatslave combi boiler has just broken. it goes round all the way and do... [Read more]

grant combi 90v3 boiler stopped heating - help?? ?

my boiler has been working fine , then last night it stopped heating. The coming throug fine but not powering ... [Read more]