How to mend ... Boiler Fires Gas

Baxi heater won't fire up from cold?

We have a Baxi boiler which has developed a fault which we can't seem to fix. The pilot light won't ignite whe... [Read more]

potterton 24 he ?

hi im a heating engineer and cant find out the problem for this boiler.. the fan comes on, the relay switches ... [Read more]

boiler firing up then cutting out?

linea 730 changed gas valve electrode and lead and ignition board still fires up then cuts out and flashes 01

ravenheat white star 100?

the boiler will fire up on hot water and heating after a few seconds it shuts down, it will keep coming on the... [Read more]

intermittent problem with central heating valve not opening?

We have a Drayton wireless for our central heating, and a Drayton ZA5679-2 2 Port motorised valve also for hea... [Read more]

worcester bosch 537i gas combi?

open dhw tap - boiler fires and goes to full fire fan on pump on no hot water

Netaheat 10/16?

All the time I have had this boiler, through a couple of circuit board replacements and gas valve itself, it h... [Read more]

Alpha HE CB33 Boiler keeps tripping the RCD?

I have an alpha boiler with an intermittant fault. Now and again just before it fires up the RCD will trip. I ... [Read more]

Saunier Duvall F30E Hot water but no heating?

Hiya. Hot water operates fine however....demand for heat , boiler fires up ok, temp display increases to 77 de... [Read more]

Gas boiler fails to fire and safety cut out has switched in?

I have an oldish gas boiler - Potterton Netaheat Profile - which provides both hot water and serves room radia... [Read more]

Boiler cuts out when CH set to on?

I have a potterton system with a 2002 timing controler and a PT2 remote electronic thermostat. If the system i... [Read more]

Very noisey old glowworm ?

My Glow-worm fuelsaver MK2 60br is very noisey and vibrates the pipework so much it has become unuseable. I've... [Read more]

worcester cd35i ii pressure problem?

i have a problem with my combi worcester cd35i ii the pressure of the unit is at just over 1 bar and when you ... [Read more]

what is the start up sequence of a combi boiler ?

just about to start a gas course and thought id put in some homework 1st, could any one tell me the start up s... [Read more]

help help help?

Please someone help we have had about 4 heating techs out all safe gas registered and no one can help its cost... [Read more]

sime 80e friendly format ,start,stop,start,stop etc?

Hi my boiler has just started playing up ,put heating on ,fan runs ,ignitor fires up gas for about 5 seconds t... [Read more]

potterton boiler trips main rcd in house, what is wrong?

I have a potterton Boiler Suprima 50 (which has had the pcb changed about 12 months ago) How ever a new proble... [Read more]

Takes a while before I get hot water, I have a combi boiler. please help? ?

I have a combination gas boiler. The boiler fires up very late after you turn the hot water tap on therefore t... [Read more]

ideal isar boiler makes a bang upon firing?

hi my boiler makes a bang upon firing up .it is as if the timing is out . what i mean is that the gas build... [Read more]

Is it my Mira 415 shower at fault?

Water from combi boiler hot to taps but when Mira shower turned on boiler fires up then hot water cuts out aft... [Read more]