Nordyne 626352R Rollout Switch

The Nordyne 626352R is a critical safety component designed for high-limit thermal protection in gas-fired furnaces. This 250F M/R safety rollout switch acts as a primary line of defense, monitoring the burner vestibule for flame rollout or excessive heat buildup. Engineered with a manual reset feature, the 626352R rollout switch ensures that the system remains locked out following a trip, requiring a technician to diagnose the underlying causeùsuch as a cracked heat exchanger or flue blockageùbefore restoring operation. As the direct replacement for 626352, this OEM-spec part provides an exact fit for Nordyne 250 degree limit switch applications across multiple brands, including Intertherm, Miller, and Frigidaire. The ceramic housing and vertical 1/4-inch terminals facilitate a secure electrical connection and reliable performance in high-temperature environments. When diagnosing furnace troubleshooting codes related to open limit circuits, replacing a fouled or weakened switch with a genuine 626352R safety rollout switch maintains the original equipmentÆs safety standards and operational integrity.

• Direct OEM Replacement: Verified 1:1 substitute for Nordyne 626352 and Miller burner safety components.
• Manual Reset Mechanism: Provides positive lockout to prevent dangerous automatic cycling during thermal rollout events.
• High-Temperature Rating: Precisely calibrated to trip at 250°F to prevent damage to the burner box and surrounding wiring.
• Universal Compatibility: Fits a wide array of gas heating units from manufacturers like Gibson, Tappan, and Maytag.
• Durable Ceramic Construction: Resists thermal degradation better than standard plastic-bodied limit controls.

How do I know if my rollout switch needs replacement?
If the Nordyne 626352R has no continuity across the terminals while the manual reset button is depressed, the internal bimetal disc has failed and the switch must be replaced.

What causes a 250F M/R switch to trip repeatedly?
Frequent tripping usually indicates restricted airflow, a soot-clogged secondary heat exchanger, or a failing inducer motor that cannot pull the flames properly into the heat exchanger tubes.

Can I use an auto-reset switch in place of this manual reset part?
No. Under safety codes, a rollout switch must be a manual reset type to ensure the system is inspected by a professional before being restarted after a high-heat event.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.