The least bit of dust in the pilot safety mechanism makes it think the oxygen is low and shuts down the heater. An easy fix. You blow out the dust from the safety or flush it with rust buster. I have repair photos HERE
This short film has a great demo HERE
If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61
Answers & Comments
The least bit of dust in the pilot safety mechanism makes it think the oxygen is low and shuts down the heater. An easy fix. You blow out the dust from the safety or flush it with rust buster. I have repair photos HERE
This short film has a great demo HERE
If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61