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We have 118 questions about mending 'boiler runs starts'

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Mend Heating, Home Heating Systems

Ravenheat 503 efd pcb?

How can I repair the Ravenheat 503 efd ignition board. The boiler fires up OK. runs up to heat(maybe 30 mins w... [Read more]
Mend Household Appliances, Vacuum Cleaners

how can i fix my vaillant vcwgb242eh boiler?

after running hot water for some time,when i try to run hot water again shortly after it runs cold also the he... [Read more]
Mend Heating, Home Heating Systems

boiler is cutting out/overheating has to be started by reset button?

boiler runs but casing is very hot boiler runs for about 10mins then cuts out only starts again by reset butto... [Read more]
Mend Heating, Home Heating Systems

Roca Boiler cycling off on off on?

Roca boiler No.GO 50 gt CC105. From cold runs well up to temp.but then starts cycling off 2.5min on 2min off 2... [Read more]
Mend Heating, Home Heating Systems

how can i fix my ariston genus he 24 mffi boiler?

when the water runs hot all of a sudden it starts cooling down and shows either E 33 or E 34 code then it clea... [Read more]
Mend Heating, Home Heating Systems

no hot water evrything fires up?

Hi need help. Iv`e got a sime super90 I fitted a new diverter valve and micro switch about 8 months ago. Ever... [Read more]
Mend D.I.Y, Plumbing

Ravenheat LS100?

When I turn a hot tap on the boiler starts up runs for approx 10 seconds then switches off then fires back up ... [Read more]
Mend Heating, Home Heating Systems

Heating/Hot Water Problems with Ravenheat RSF100ET?

Hi Original problem was not very hot DHW, but burner running flat out. Changed both DHW and CH thermistors, ... [Read more]
Mend Heating, Home Heating Systems

Problem with Worcester boiler pump?

I have a Worcester 28CDI boiler and i recently replaced a faulty pump. However, the new pump seems to operate ... [Read more]
Mend Heating, Home Heating Systems

why is my ferroli maxima 35c boiler cutting out then starting up again?

when my heating is on it runs for so long then stops then starts up again
Mend Heating, Home Heating Systems

Keston c40 will not run?

Hi,i have a Keston C40 about 4 years old.I have no error codes.The boiler starts at normal code 1 then through... [Read more]
Mend Heating, Home Heating Systems

boiler starts up for 7 seonds and then stops ?

i fitted a service kit to my vaillant boiler a turbomax as i had no hot water it cost £32 but fireing it up... [Read more]
Mend Heating, Home Heating Systems

High pressure and hot at both rads and water?

I have a canray 5 oil boiler. The circulation pump had ceased and has now been replaced. However I have some w... [Read more]
Mend Heating, Home Heating Systems

Ariston microGenus He 32 mffi?

my boiler shows no water pressure E 02 error code .correct code for no water pressure . fill up system with bu... [Read more]
Mend Heating, Home Heating Systems

My Worcester 28i Junior will not spark?

I have a worcester 28i junior combi boiler which will not spark the pump runs, the fan runs which in turn swit... [Read more]
Mend Heating, Home Heating Systems

what,s wrong with my feroli falcon?

when heating is on the boiler lights and runs ok but after a while it starts stops and starts again within sec... [Read more]
Mend Heating, Home Heating Systems

ideal mexico super rs485 boiler ?

After the boiler starts on a morning and runs for about 10 min it shuts down and then restarts a number of tim... [Read more]
Mend Heating, Home Heating Systems

Combi noisy on start up?

When my combi boiler starts from cold it is extreamly noisy and the pressure gauge flickers over about 0.5 ba... [Read more]
Mend Heating, Home Heating Systems

how can i fix boiler?

My boiler starts, but no pilot light comes on and the boiler runs, how do i fix this?
Mend Heating, Home Heating Systems

Clunking noise when my boiler starts?

When my boiler (Thorn appollo 30/50) starts it makes a kind of clunking noise, sounds like an airlock in the p... [Read more]
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