Description
The York S1‑7990-3591 Auto Limit Switch is a genuine OEM safety component designed to help prevent overheating and protect your HVAC furnace or air‑handler system. This automatic limit switch constantly monitors internal temperature and will interrupt blower/fan or system operation if temperatures rise beyond safe limits — helping to avoid damage to the unit and ensuring safe, reliable heating/cooling performance.
Key Features
- Genuine OEM Part – Built by York to original manufacturer specifications for proper fit and reliable performance.
- Automatic Temperature Safety Control – Shuts down or controls blower/fan operation if internal temperature exceeds safe thresholds.
- Restores Safe System Operation – Ideal for replacing worn or faulty limit switches to re‑enable safety shutdown functions and prevent overheating damage.
- Compact OEM Design – Compact size makes installation or replacement straightforward and compatible with heating units originally using this switch.
- Reliable & Durable – Designed to handle repeated thermal cycles and long-term usage in HVAC systems.
