Nordyne 626231R Limit Switch

The Nordyne 626231R Limit Switch is a critical OEM replacement part designed for use in Intertherm, Miller, and Nordyne electric furnaces. This 15-135F Auto Limit Switch features a double-pole, single-throw (DPST) or double-pole, double-throw (DPDT) configuration depending on specific board integration, providing essential rollout protection for high-temperature conditions. Engineered to open on rise at a fixed setpoint of 165?F and featuring an automatic reset mechanism, this furnace rollout switch ensures system safety by interrupting the heating cycle when internal temperatures exceed safe operating parameters. As a genuine Nordyne replacement part, it maintains the precise calibration required for mobile home furnace applications, effectively replacing older or failing L165-degree limit controls to prevent intermittent cycling or safety lockouts.

• OEM Precision: Guaranteed compatibility with Nordyne, Intertherm, and Miller electric furnaces for a drop-in replacement.
• Automatic Reset: Eliminates the need for manual intervention once temperatures return to the 135?F range.
• Enhanced Safety: Fixed 165?F trip point prevents heat exchanger damage and potentially hazardous rollout conditions.
• Contractor Grade: Durable construction designed to withstand the high-cycle demands of residential HVAC systems.

Is this switch compatible with my electric furnace?
The 626231R is specifically calibrated for Nordyne-manufactured units requiring an L165 rollout limit; always verify the temperature stamp on your existing part before installation.

What causes this limit switch to trip frequently?
Frequent tripping usually indicates restricted airflow, such as a dirty filter, blocked return, or a failing blower motor, rather than a faulty switch.

Can I use a manual reset switch instead of this auto-reset version?
It is critical to use the exact specified reset type; swapping an auto-reset for a manual reset (or vice versa) can disrupt the safety logic of the control board.

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.