the 90-370 is a critical HVAC replacement part for Rheem

Key Benefits Broad Compatibility: Engineered specifically for the Honeywell Q624A Solid State Spark Generator and legacy Q652 series units

60 specific gravity natural gas

while the coil requires a 24V control signal

use a multimeter set to Ohms

Nordyne 626425R Limit Switch the 90-370 is a criticalThe Nordyne 626425R Limit Switch is a critical OEM furnace safety control engineered for precise thermal monitoring in residential and light commercial Nordyne, Miller, and Intertherm heating systems. This automatic reset limit switch operates within a fixed 190 210? F temperature range, serving as a primary failsafe by interrupting the heating cycle if the heat exchanger exceeds safe operating parameters. As a direct 626425 replacement part, it