No hot water on intesa (ariaton) combi boiler

[00gadge]

Hi I'm after some advise please. I've changed a acuator and gubbins on a diverter valve on a intesa (ariston) boiler. It has worked for 24 hours but now no hot water.It fires ok on htg. I'm thinking dhw thermistor but am really after a second opinion or correcting please. Many thanks.

 

[DirksPlumbing]

No hot water or water not hot?

 

[00gadge]

No hot water or water not hot?

hi the water is not hot, boiler not firing on hot water.

 

[GrahamM]

I think you need to have a qualified person look at this before you throw any more needles parts at it.

 

[DirksPlumbing]

hi the water is not hot, boiler not firing on hot water.

If the boiler does not even attempt to fire it is more likely the flow switch rather a temperature sensor. Do you get a flow rate nearby the specified rate?

 

[00gadge]

If the boiler does not even attempt to fire it is more likely the flow switch rather a temperature sensor. Do you get a flow rate nearby the specified rate?

Hi yea the flow rate is fine. I'm a engineer but mainly on installs not done many repairs/fault finding.

 

[00gadge]

I've tried the flow switch but still no joy. Any ideas anyone it would be much appreciated.

 

[RoryD]

Has this boiler been repaired mate.. if so I'd be grateful for the feedback...got a similar problem