Water boiler furnace for house heating stopped working

I had trouble with my house heating gas burning boiler .
It was running OK from beginning of the heating season but out of the blue sky stopped in a middle of the night. I found warning light on burner's front panel was ON
After reset of that light which is the reset PB as well boiler run few hours and stopped again.
Contractor was called for service but then they called and advised that they don't repair that burners anymore. Another contractor was available only next week.

Since I work at maintenance department of food plant and I have experience with gas consuming equipment I fixed the problem myself.
There is detailed step by step service report
It can be done by homeowner himself if he has necessary skills
Alco for gas technicians that video my be helpful.
Put Like/dislike.
Your comments good and bad will be appreciated.
By the way the trouble
with the heater happened just before my flight to BC for vacation -fishing !!!! Can you imagine that?

Subscribe for my channel for more DIY videos and my fishing adventure
That video will be ready soon

Видео Water boiler furnace for house heating stopped working канала Fishing and more DIY projects - MacGyver with me