How to mend Ideal 28i

My Ideal Isar H24 boiler has a H : F flashing, what can this be?

Radiator only getting hot on bottom half?

Fan tries to run every 15 seconds then stops immediately?

My combî logîc 30 îs flashing f5 î have followed the înstructîons acc?

ideal w rs460?

how can l fix my ideal independent c30?

high boiler pressure ideal isar 28?

MY ideal boiler has a f1 fault how do I fix it ?

Ideal boiler HE35 boiler working but screen does not show any info?

no water coming from the hot tap?

Ideal FF260 cover removal?

I have an Ideal ff380 boiler. The heating is not coming on with the timer?

Ideal isar 30 combi/boiler?

ideal logic combi 30 boiler f1 error?

Ideal Mini C28 Pressure relief valve?

How can I fix my ideal icos boiler?

no power to my boiler?

Ideal he 24 boiler not working?

Ideal Classic FF260 boiler - fan full of water?

How can I fix my ideal isar he24?

logic30 + combi?

my hot water is taking to long to get hot?

ideal combi 30 boiler heating not working on timer only override?

Remove boiler cover?

No hot water on ideal isar 24?

Ideal Isar H30?

Ideal icons boiler display panel?

no heating or hot water:(?

Remove cover off gas boiler?

no water to my rads?