boiler change do i need to change flue aswell

[Chellvic]

i am changing a 15 year old ideal isar 24he combi boiler, it has a vertical flue with bends and extentions on going through a wall and roof, can i swap the boiler but keep the same flue, thanks

 

[CountryFan]

What boiler brand are you having? Either way, I doubt the existing flue can be re-used.

 

[Chellvic]

i was going to get another ideal boiler if i could keep same flue.

 

[CountryFan]

i was going to get another ideal boiler if i could keep same flue.

That might be a conversation for your installer or Ideal technical. I don’t know enough as I don’t install, just repair.

 

[Chellvic]

ok, well the problem i have is there is no lcd on the display panel and i took it to be checked and they said it was working fine, the boiler turns on but does not seem to fire up, no hot water or heating. i have also noticed some black goo stuff around the base of a brass part where a wire goes into i will try and upload a pic if you have any ideas as i would rather buy a new boiler after christmas if possible, thanks

 

[CountryFan]

The black stuff/goo looks like a small leak. As for the display and lack of heating or hot water - I would check the mains connection, these are a small white plug in type, test for voltages and continuity

 

[Chellvic]

thankyou, do you know what the part is called that is leaking as im trying to see if boiler is worth repaing short term or to get a new boiler.

also i dont know what happened but i replaced the lcd panel and pressed some lights on the thermostat receiver on the wall and boiler came back on but water is warm not hot and radiators are red hot and cannot turn down, they have smart rad valves fitted, would battery problems cause this thanks

 

[Chellvic]

i dont know if the rad valves are smart ones or just modern ones as they was fitted under an energy scheme and was working fine before hand. also the wireless thermostat seems to be working but does not seem to be responding if i turn heating up or down via it, thanks

 

[CountryFan]

Sorry, not sure on the part, but any gas safe registered engineer could work it out when on site. As for luke warm water, usually the diverter or plate heat exchanger.