Evo HE22 - L/F after new flame sensor and controller

[Neil Marshall]

Where do I go now? I’m getting Flame Lock although I’ve replaced the sensor and the control box. I’ve also had an occasional 0/3 bars in the last few days.

 

[CBW]

Where do I go now?

contact a gas safe engineer and let them fix your boiler

 

[Neil Marshall]

That's not why I come on here. I am looking for technical thoughts or advice.

 

[flameport]

https://www.diynot.com/diy/threads/diy-gas.8090/
Forum rules do not allow DIY gas advice.

 

[CBW]

That's not why I come on here. I am looking for technical thoughts or advice.

Then I suggest you join the combustion chamber forum to discuss gas related matters as per @flameport forum rules do not permit the advice of “work” on a gas appliance.

 

[ianmcd]

https://www.diynot.com/diy/threads/ideal-isar-he35-3-line-fault.300003/#post-2190383

 

[CBW]

https://www.diynot.com/diy/threads/ideal-isar-he35-3-line-fault.300003/#post-2190383

That the same as L/F?

 

[Neil Marshall]

L/F is Flame lock yes. The flame gets turned off when there is no ion stream picked up by the steel flame detector rod.

 

[ianmcd]

That the same as L/F?

The 3 horizontal lines are overheat

 

[Neil Marshall]

Fixed it. I vacuumed the sump, it had a thinish layer of ‘ash’ in it, but I’ve no idea why this should mean the boiler would now work as designed.