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The ultra reliable? Intergas 24/18 has started locking out with a code 4 listed. Works OK on both DHW and CH for a while then just locks out again. On resetting will fire up and seems OK but eventually locks out again sometimes after a minute or so other time after a good hour or more. Clearly...

I say 'fault' in inverted commas because it's probably not a fault. Boiler: Intergas 24/18 delivers DHW superbly, but not firing on Central Heating. The boiler is second hand and was removed from a property that had a large extension and was underpowered for the additional rads. The boiler...

Ok experts, are you ready for a headache..or perhaps help cure mine and point out the fix. I'll try and keep this simple and precise. The above boiler began cycling off and on and would not supply DHW unless CH dial was turned up (ie central heating on full) This eventually led to the...

Boiler stopped working over the weekend. Green status light rapidly flashing (not locked out) The first fault listed in the service manual is the pump and the problem appears to be here. On inspection, I noticed a very slight leak under the pump housing where it mates with the boiler. Also...