Arkansas HVACR NewsMagazine September 2023

HVACR NewsMagazine September 2023

Tech News

Leak Location #3: The Joints Where the Tubing in Evaporator Coil Enters

The joints that have a bad swage, where they enter the tubing, are the most susceptible to having a leak form (see photo below) . However, be sure to check all the joints and tubing at the evaporator coil.

View the bubbles forming. Leak Location #4: The Distributor Tubes at the Evaporator Coil Examine the distributor tubes at the evaporator coil to determine if they are rubbing against each other (see first photo below) . Also, examine where the tubes go into the 3/8 tubes (see second photo below) . Use an ultrasonic leak detector to check for a leak along the length of the coils.

Pass an ultrasonic leak detector across these locations to find the leak (see photo below) .

Apply non-corrosive bubble leak detector to the area where the leak has been found (see following photo) .