How to mend ... Combi Heat Fires

Potterton combi performa 24 heating not switching off?

Room stat calls for heat and boiler fires up. yellow light comes on boiler. When room temp has been reached, f... [Read more]

Troubleshooting a Bosch ZWB28-3 combi boiler?

Currently it heats our hot water well but when cold is mixed in like in the shower the temperature of the wate... [Read more]

Worcester 28i Junior Combi... Hot water but NO Heating ???

Hi everyone, We have a Worcester 28i Junior Combi which developed a fault this week. We have hot water fine b... [Read more]

I have an ariston E Combi 38 which keeps shutting down when trying to heat ?

Ariston E Combi 38 fires up to heat radiators, but switches self off after about a min, then refires up after ... [Read more]

how can i fix biasi combi riva compact he 24s?

the boiler fires up on heating but will not fire up on hot water av cleaned secondary heat exchange out which ... [Read more]

How Do I Trace the Cause of my Central Heating Boiler Fusing My House Elect?

I have A Grant Combi 90 MKII Oil Burning Boiler. When it fires up to heat the water or for the heating to com... [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]

fireing up and then shuting down it gets up to heat ?

hi baxi combi 80 eco cleaned system, cleaned both heat exchangers, cleaned fan working ok, cleaned pump w... [Read more]

Ravenheat 85T Condensing Combi Boiler?

Boiler is about 5 yrs old. Added extra pipes to heat another room, after bleeding the system through (there wa... [Read more]

Potterton Combi 80 cutting out on heating mode?

Heating fires for 1min - 2min then flames cuts off. Does'nt lock out and pump keeps running. The boiler contin... [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]

Hot Water and heating on at the same time, cant stop it?

when I switch hot water tap on, boiler fires up as normal but radiators heat up as well, although heating syst... [Read more]

Combi Boiler CH ok but no HW?

I have an old oil-fired Firebird C20 70K combi boiler, that provides CH and DHW to my house which has a single... [Read more]

Hot water but not to rads?

Baxi combi 105e. Boiler shows no faults.Hot water is ok but.. central heating....fires up & temp rises to fu... [Read more]

britony combi 80 boiler?

boiler fires up but only runs seconds does not heat hot water or run the heating the over ride switch is used ... [Read more]

New Glowworm 24c betacom- not heating radiators?

We had a brand new Glowworm 24c beta com combi boiler installed last week, with a digital thermostat in the li... [Read more]

britony combi 80 no CH!!?

i have a britony combi 80, it works fine for DHW but when heat is called for the CH it goes through the sequen... [Read more]

britony combi 80 no central heating???

i have a britony combi boiler 80, the hot water works fine when called for but when asked for heat for the CH ... [Read more]

HOW CAN I FIX MY COMBI BOILER model vcw_ sine 18 t3 wf h valliant?

valliant combi boiler vcw_sine t3wf h,boiler fires up to provide hot water but wont fire up to heat the radiat... [Read more]