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Problem: FYI Troubleshooting and cleaning a Bryant Carrier 3 wire pilot burner.

This customer was kind enough to share with me how he repaired his Bryant Carrier 3 Wire pilot burner. This customer had installed a new 3 wire pilot burner, then decided to clean the old 3 wire pilot burner to see if he could get it working. Sure enough he got it working again after 20 years of service! Below we have two YouTube videos made by Grayfurnaceman which show how to troubleshoot and the operation of a 3 wire pilot burner. Thanks Grayfurnaceman for making this informative video. We sell the Bryant Carrier 3 wire pilot assembly on the following page: https://www.arnoldservice.com/bryant-carrier-3-wire-pilot-burner-lh680005/  If you have any questions please feel free to email us at: support@arnoldservice.com or comment in the comments section below. We would love to have your business!

FYI – Without making any adjustments to the Gas Flow, I noticed on the new 3 wire pilot burner, that more of the pilot flame appeared to be striking the switch plate when the blower kicked in. So I re-installed it after performing the below maintenance and it too worked again. However, I figured 20 years of service was good enough and retired the old one with the new one.
a) From inside the chamber where the gas would enter the Pilot Burner and the brass fitting screws in, I blew out the Gas Nozzle and the little cone nipple that the compression fitting sits into. The hole on the cone looked a little stopped up.
b) Took Sand Paper to the strike plate and wet sanded it back to bare metal again.
It looked like the blower kicking in was stealing enough of the pilot flame away from the strike plate to cause it to cut in and out.
Thanks again for your attention and service.
Much appreciated.
Alan
Below we have two YouTube videos made by Grayfurnaceman which shows the operation and troubleshooting of a 3 wire pilot burner. Thanks Grayfurnaceman for making this informative video.

2 thoughts on “Problem: FYI Troubleshooting and cleaning a Bryant Carrier 3 wire pilot burner.

  1. Thank you! I had worked out that the switch wasn’t working, but the problem was blockage in the pilot tube. Cleaned that out and now the pilot light branches properly and the flame sensor switches correctly.

    1. Great! Fantastic! Glad to hear that you fixed your furnace by cleaning out a blockage in the pilot tube! Yes, the flame sensing plate on the 3 wire pilot must have a good strong blue flame or it will not work. Thanks so very much for letting me and others know that a dirty pilot tube could cause the 3 wire pilot not to work. Hope you have a great Christmas and a Happy New Year! Steve

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