How to mend ... Hot Water System

Ferolli optimax He31 c d1 fault code?

Hi there. I am showing d1 on the display of my ferolli optiamax 31c he boiler. I have hot water (which is now... [Read more]

MORCO feb 24 Boiler heats ok but locks out when temp reached?

I have a fault on my Morco feb24e boiler central heating - it's failing with fault code (no flashes) which say... [Read more]

Potterton Prima 80F - no hot water?

Help, my Potterton Prima 80 F has just started producing very luke warm water. The central heating system is s... [Read more]

isar HE30 no display on user control?

The display on our isar he30 user control is blank. The heating and hot water still works so I'm not so sure i... [Read more]

Glow Worm Swiftflow 80?

Everything works properly when turning on Central Heating and or Hot water when getting in from work. However ... [Read more]

Vaillant ecoTec 831 I have hot water but no heating?

Please help! Our heating has suddenly stopped working. The display shows that the internal pump is running, ... [Read more]

grundfos selectric 15-50?

Central heating working ok but hot water only luke warm. Large screw ! in center of pump is pointing to '130'... [Read more]

Condensing boiler overflow dripping?

We moved into a newbuild 18 months ago but over the last 2 months the overflow pipe to my boiler (located dire... [Read more]

Does my boiler need it's gas pressure adjusting ?

My Sabre 35 Combi boiler fires up ok when i turn on the hot water tap, but the water has to run for ages befor... [Read more]

Glow worm 100E small burner flame, now hot water?

Hi, i hope you can help me with a problem that is just baffling me. I have a Glow worm 100E that has heating ... [Read more]

Potterton performa central heating problem?

Hello, everybody. Since I dont want to be tricked by any plumber who might visit me in the future I'm looking... [Read more]

Permanent F5 fault?

I have a Glowworm 18hxi boiler with a Systemate 2000 Gledhill system. Boiler keeps failing with F5 fault. Ha... [Read more]

How to isolate hot water taps in combi boiler system?

What to do before replacing hot water tap washer in combi boiler system

Radiator problem?

Can anyone tell me why when my gas ch system is set to hot water only the upstairs radiators come on too (this... [Read more]

How can i fix ?

I have a worcester 24i Junior After about 15 minutes of having the hot water & heating on my fault indicator... [Read more]

Ideal Combi Logic boiler "L3" fault. ?

Whenever the temperature knob is turned up higher than half way, the boiler shuts down, flashing L and 3. Have... [Read more]

Prima f, how to refil cylinder ?

Had to drain prima f system because of bust radiator pipe. Fix radiator pipe. Checked small black tank in lo... [Read more]

when I turn the mixer tap to full hot water, it goes cold?

Hi, I have a Santon premier plus unvented hot water system, it used to run fine. But now when I turn the mixer... [Read more]

Greenstar CDi combi boiler overheating?

Hi, Greenstar CDi combi boiler 3 years old. Top floor radiators cold so bled, this dropped water pressure to z... [Read more]

the hot water is ok but no heating?

the hot water system is fine but no heating not even when overriding the programmes tried re-programming and s... [Read more]