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Troubles with the Burnham ES2

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Plumdog_2
Plumdog_2 Member Posts: 873
in Gas Heating
 Any contractors figured out the cure for the low flame sense value? The last three ES2 I installed all had the same darn symptom; where the flame strength value decreases as the boiler warms up, until the control drops out the main burner, repeating several times and then locking out. The wholesaler sends out replacement pilot assemblies which sometimes cures it, and sometimes not. All these are Nat. Gas models and operate at "high" altitude of about 8000 ft. above sea level. I'm not the only guy experiencing this.

Rob

<a href="mailto:robwright1949@gmail.com">robwright1949@gmail.com</a> 

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  • Plumdog_2
    Plumdog_2 Member Posts: 873
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    Answer to my own question!

    Apparently there was a string of defective spark/sense probes by Honeywell, and replacing them with off-the-shelf Honeywell probes cured it. Administrator: You can delete this post.
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