Mike Lamb 59 Posted December 19, 2019 Report Share Posted December 19, 2019 It is too cold to run AC around here. Would the corrosion at the suction line connection at the furnace air handler be indicative of a refrigerant leak? Quote Link to post Share on other sites
Anatol 1 Posted December 19, 2019 Report Share Posted December 19, 2019 Probably not, but the corrosion could cause a leak. Anatol 1 Quote Link to post Share on other sites
Marc 83 Posted December 19, 2019 Report Share Posted December 19, 2019 Corrosion doesn't indicate a leak but it does indicate the wrong fitting. That fitting is the wrong one. If there's no sight of any oil, I'd not write it. If there is oil, there's likely a leak. 1 Quote Link to post Share on other sites
Freezer man Fran 0 Posted April 22, 2020 Report Share Posted April 22, 2020 Condensation on the sold suction line is causing the steel flare nut to rust, wouldn't happen if it were brass. Quote Link to post Share on other sites
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