Vaillant ecotec plus 824 intermittent F62 code.

[Charles Muscat]

Hi I have a Vaillant ecotec plus 824 and it has had the F62 codes a few times, but goes away after turning off the boiler and turning it on again.

I have seen a few YouTube video's which show that when the heating or hot water is on the temperature on the screen fluctuates by about 10 or more degrees and then goes back to the correct temperature. I have noticed my boiler doing this when on hot water mode or heating mode, going from 65 degrees to 75 and the straight back to 65 and vice versa for over 30 seconds. Do you think that it is more likely to be the PCB board that needs changing or the gas valve? Or something else entirely?

Thanks in advance for your advice

Charlie

 

[cross thread]

Pcb ,but it MUST be fitted and set up by a registered gas safe.

 

[Charles Muscat]

Thanks for that, just wanted to be sure to get the right part for when they come round. Just have to try and return the gas valve now : /