Oil fired boiler burner shuts down after running normally for five minutes.

[Dave W.]

Hi,
I'm having problems with my oil fired central heating boiler. Its a Panda II with an Electro Oil burner fitted with a Danfoss oil pump. The problem- The burner fires up normally as per, and the flame is well established, however after seven minutes it flames out and then locks out after the statutory 12 seconds. I've checked the oil supply, bled the feed pipes, cleaned the filter in the oil pump and bled the pump. Problem still persists. Any ideas anyone?
Dave W

 

[SimonG]

Yep. Can you reset it straight away or do you have to wait several minutes?

 

[SJB060685]

Danfoss pump and danfoss coil. Common problem with danfoss coil breaking down after a short while. I'd suspect the coil first but I wouldn't rule out a fuel supply issue either based on what you've said

 

[Dave W.]

Hi,
I'm having problems with my oil fired central heating boiler. Its a Panda II with an Electro Oil burner fitted with a Danfoss oil pump. The problem- The burner fires up normally as per, and the flame is well established, however after seven minutes it flames out and then locks out after the statutory 12 seconds. I've checked the oil supply, bled the feed pipes, cleaned the filter in the oil pump and bled the pump. Problem still persists. Any ideas anyone?
Dave W

Problem solved, turned out it was the coil

 

[SJB060685]

Problem solved, turned out it was the coil

As I suspected. If this becomes a frequent thing replacing the coil ie one a year or so then I'd replace the stem as well. I won't bore you with the science.