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Pilot Outage

Empire_2
Empire_2 Member Posts: 2,340
in THE MAIN WALL
The t-couple works on it own with no influence from out side power source. It may have something to do with incoming gas pressure or something down the line. As long as the pilot is strong and there are no cut out solenoids in the gas line, I cannot think of any correlation between the power outage and the pilot going out.

Mike T.

Comments

  • RianS
    RianS Member Posts: 104
    pilot goes out

    I have a brain teaser. Has anyone ever had a pilot go out when the power goes off at someones home? Heres the situation. A customer of mine was having pilot outage several times a year, he calls us to clean and check furnace. I cleaned furnace and installed a new thermocouple because it was the original one. A couple weeks later he calls back and said he had to light pilot again. I go back, check thermocouple output at gas valve under load and find very good mv readings and gas valve dropped out at 4 mv. At this point I didnt know what to do so I installed a new pilot assembly thinking maybe there was a gas leak below the pilot orifice. He calls back a couple weeks later and said pilot out again. This time he said he also noticed the power had been out at the house because the clocks were flashing when he got home and could this be the cause. I said I never heard of it but lets wait and see if the pilot goes out again when the power goes out. Well this went on for months and he was keeping track of it and every time the pilot went out, the power had also been out. This is a Bryant nat gas furnace with a Honeywell VR gas valve. Any ideas on what could cause this? Thank for your help. Rian
  • Unknown
    Unknown
    Make sure this system

    is properly grounded. I have experienced this in the past and found that the pilot was goiong out when the power came back on. The gas train was somehow acting as an equipment ground. An electrician friend of mine tells me this is not unusual when a poor or no equipment ground is installed. That surge is enough to knock the magnet assembly out on the gas valve.
  • RianS
    RianS Member Posts: 104
    Thanks Tim and Mike

    I worked for the gas company for many years before going on my own and never heard of that happening before. I think you may be on to something with the ground thing. He has had other electrical problems over the years. Thanks guys, Merry Christmas, Rian
  • Big Ed_3
    Big Ed_3 Member Posts: 170
    Murphys Law

    "Anything that can happen , will happen "
This discussion has been closed.

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