Danfoss solenoid coil

[Nostrum]

Sorry, forgot to add. Burner is a bentone electro inter B9.

Thanks.

 

[kimbo]

Nozzle can be blocked which is quite common and won't show wet on the end. Don't get too bogged down use a methodical approach and you will get there in the end. I have never used a lux meter so I wouldn't know. When you go to a break down you have to satisfy yourself that the basics are present such as fuel and spark, difficult for us to say without being there but it would appear to be one of those 3 things, if none of those we go on to the control box. Good luck.

 

[Bunker]

An easy check is to disconnect photocell and fire the boiler, if the burner fires up and then goes to lockout the cell is faulty.

Not always, especially on the RDBs - if the Photocell has gone open circuit, ie thinks it sees light (check with continuity tester) then some of the burners will run on without going to ignition, ie motor running but no coil/spark. The photocells are often damaged when over aired although unlike the older types, no damage is necessarily visible (sometimes the end of the 'tube' spreading apart can be a sign)

 

[lame plumber]

Not always, especially on the RDBs - if the Photocell has gone open circuit, ie thinks it sees light (check with continuity tester) then some of the burners will run on without going to ignition, ie motor running but no coil/spark. The photocells are often damaged when over aired although unlike the older types, no damage is necessarily visible (sometimes the end of the 'tube' spreading apart can be a sign)

just when i thought i was winning panto land kicks in "no it doesnt yes it does" but oil is more interesting to work on than gas omho

 

[kimbo]

YYou are right bunkerif the burner runs on as you said it is a classic symptom on an rdb but again as I said if you disconnect the pc and the burner fires and then goes to lockout the pc is faulty.
We are talking about a b9 burner here.

 

[Roger Welton]

Any burner using satronic or danfoss control gear I find the easiest way to check component is to remove box and put live onto them individually, also helps to check for arcing on ignition electrodes/leads.

 

[Bunker]

..but again as I said if you disconnect the pc and the burner fires and then goes to lockout the pc is faulty.

Sorry bud, I hadnt read your post properly, you did say that 🙂

 

[Lou]

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