Recalls and Service Alerts

Furnaces - Air Conditioners - Heat Pumps

Restricted Equalizer Line Issue on Thermostat Expansion Valves (TEV) used with CX35 Coils

Type: Service Alert
Equipment: Air ConditionerHeat Pump
Recall or Alert Date: 08-10-2015
Serial Number: C-15-07
Brands Affected: Lennox

Description of Problem:

TEV operational issues on systems utilizing CX35 coils due to manufacturer's copper flare seal bonnet blocking the equalizer line. If the equalizer line is restricted (by the presence of the seal bonnet), the pressure sensed at the underside of the diaphragm will no longer correspond to the evaporator outlet pressure and the TEV will not be able to operate as intended.

Affected Products:

CX35 aluminum coils with factory-installed TEV