How to mend ... Boiler Heating Mode

Pump is sorted.How do i clean dhw heat exchanger Vaillant part no: 065053?

Pump is sorted by now. I have back hot water and central heating. But some problems with hot water persists. ... [Read more]

How can I fix my Potterton Performa 28i?

In heating mode pressure builds up quicly to3 bar then pressure relief operates , when boiler cools water has ... [Read more]

vaillant ecomax 824e flashing e20,e13,f20. How to fix it?

Thing is, that my boiler (which is vaillant ecomax824e) use to go through these codes e20 and then f 20, or e1... [Read more]

kettling on pottern 10 16?

my boiler kettles in the hot water mode only not when its in heating and hot water. temp stat is set at min bu... [Read more]

worcester 24i rsf combi heating?

hi, when in demand mode my boiler fails to light. fan does not run or pump, but hot water system is fine and w... [Read more]

how can i fix my boiler?

halstead ace high hot water is intermitent i clean the heat exchanger and all is well but why does it heep hap... [Read more]

Sime 80e heating on constantly, ?

my sime 80e boiler has the heating on all the time. the only way to turn it off is at the mains or to turn the... [Read more]

Baxi Combi Instant 105 HE fault?

Hi, on the above boiler we had a PCB fitted to replace a fault (Demestic hot water mode). This produced a fla... [Read more]

Can can I fix an airlock in the central heating system?

I have recently had a new valliant eco plus gas boiler fitted, along with 13 new lockshield valves and TRV's o... [Read more]

ace high boiler problem?

replaced diaphram and diverter valve service kit , ch working ok , in dhw only mode both central he... [Read more]

alpha 280e problem?

hello guys . this boiler has started screaming when the heating fires up ,and when hot tap ran . took cover of... [Read more]

heating on all the time ?

hi i have a woscester greenstar ri that wont switch off ie when boiler in timed mode the heating is still on w... [Read more]

whats the problem with my baxi 105e instant boiler?

Hi my baxi 105e instant boiler is stuck in the hot water mode i.e light on constantly. The hot water works fin... [Read more]

heating?

my digistat keeps going into alarm mode , i have to press the overide button to start the boiler

how can i fix valliant turbomax time switch 110?

i have a valliant turbo max, the time switch 110 doesn't seem to be working..in the timer mode the boiler/heat... [Read more]

Cannot turn heating off?

I have just moved into a house with a Vaillient combi boiler. I cannot turn the heating off by any means, I h... [Read more]

Cannot turn radiators off,?

I have just moved into a house with a Vaillant boiler. I cannot turn the heating off by any means. I have tr... [Read more]

sime boiler, format 80 c DHW problem?

boiler works fine in heating mode , but runs for only a few secomds when DHW is drawn, then water runs cold, a... [Read more]

how can i fix my warmflow combi 90 HE?

The boiler is overheating in hot water mode it measures 72'c in the heat pocket but at the top of the boiler i... [Read more]

how can i fix my chaffoteaux and maury brittany se 80 ?

the boiler runs on hot water for 3 to 4 minutes then reset light comes on. fine on heating mode.