A yellow indicator warns of high moisture content in the system

What indicates it is time to replace the water heater element

Field-Ready Diagnostics: Integrated relay status LED provides instant verification of circuit activation

While the 29 Series has models for air (K suffix)

Precise Measurement: Calibrated for a 0-125 PSI range to provide accurate suction side monitoring

Nordyne 667406 Fan Blade 320788-703 A yellow indicator warns ofThe Nordyne 667406 Fan Blade is a precision engineered 20 inch 2 blade fan designed for specific HVAC condenser and furnace applications. This CW (Clockwise) rotation blade is built to meet exact OEM specifications, ensuring optimal static pressure and airflow delivery in Nordyne, Miller, and Intertherm equipment. Featuring a durable aluminum construction with a reinforced hub, this condenser fan blade minimizes vibration and reduces mechanical stress