Danfoss BHO 61 fault finding

[IvorMac]

Hi
Has anyone attempted the repair of a Danfoss BHO 61 controller?
I have one here which is not providing supply to the ignition transformer and the system eventually locks out.
Initially I had a faulty ignition transformer which I replaced: I tested the 'new' transformer and it arced.
I fitted it and thought 'problem solved' but no, no arc on start-up.
I disconnected TX from circuit and applied mains directly and it arced on the electrodes.
It would look as though the controller is faulty.
Has anyone any experience of the BHO 61 controllers.

Thanks for your time...

 

[Burnerman]

Personally I wouldn't spend too long on these.......even if you find a burnt component inside there's no guarantee that is the end of the issue.
Far better fit an up to date unit:

Danfoss Control Box OBC 82.10 was BHO72 64 61 057H8702

Danfoss Control Box OBC 82.10 was BHO72 64 61 057H8702

www.heating-parts.co.uk

John