Mend > Home Heating Systems

How can I re-bond Siemens receiver when instructions not work?

I have followed instructions about pressing override and learn buttons, but neither LED light on reciever come... [Read more]

Lost allen screw when bleeding boiler?

Hi hoping someone can help me - I ran out of oil - needed to bleed my boiler - did so with allen key but accid... [Read more]

vokera 25 excel?

how to reset vokera 25 excel

vokera compact he with intermittant hot water?

Hi I have an Vokera Compact HE . Radiators work fine but when I try to run a bath the water goes from hot to ... [Read more]

Setting the timer Siemens RDJ10RF?

I am not sure how to set the timer so that the temperature changes between comfort time setting and the econo... [Read more]

how can i fix thermostat?

have a Drayton digistat + room thermostat 83251 , put new batteries in but screen says -E8- with or without pr... [Read more]

How can I sort my thermostat. Code: 20059643?

How come the heating does not come on when the override button is pressed. Vokera vision 30c

I have a ferroli optimax he 31 c boiler ?

The heating just seems to turn on and off randomly having not been programmed.Any idea why ?

I have a sabre he boiler that fires up initially then cuts out to red light?

I have a problem with a sabre he 35 boiler the problem is I have reset the boiler re pressurised and done all ... [Read more]

pilot lites & stays on until burner comes on-then run short while &goes out?

pilot lights & stays on even when the burner is turned on.then it runs a short while & then shuts off. When ... [Read more]

how can i fix my potterton performa 24?

hi ya everyone i have a potterton performa 24 central heating system some times it fires up for hotwater,heati... [Read more]

worcester 2.8 i junior boiler clock on programme dial not working ?

clock not working on programme dial but heating still working when switched to continuous on. any ideas how t... [Read more]

re pressurizing boiler?

Trying to repressurize Greenstar 28i boiler and had the key in position but when turning the neighbouring whit... [Read more]

hot water but no heating on valiant combi boiler?

hot water but no heating working all day then heating stopped this is a valiant combi boiler

Blank screen?

Help the screen on our RDJ1ORF unit blank changed batteries but still nothing no heating

I have a thorn olympic 38/50?

Heating system works fine but when i switch to hot water boiler wont ignite

How to fix a leak between the burner and heat exchanger?

A problem has been identified by an engineer on my 10 year old Isar HE30. It had a L F fault code which could... [Read more]

boiler Glow-worm hideaway ff free standing?

had service replaced pump butkeeps cutting out after running for about an hour

my greenstar highflow 440 boiler is showing an error code C1?

the boiler is showing a c1 error, fan speed too low, how do I fix it please?

Wiring code on Myson burner 60/80?

Changing boiler motor over from Myson 60-80 to kerosene burner Modal no RDB1 70-90 not shaw of the wireing ol... [Read more]