Mike Lamb 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 comment Share on other sites More sharing options...
Anatol Posted December 19, 2019 Report Share Posted December 19, 2019 Probably not, but the corrosion could cause a leak. Anatol 1 Quote Link to comment Share on other sites More sharing options...
Marc 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 comment Share on other sites More sharing options...
Freezer man Fran 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 comment Share on other sites More sharing options...
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