Tecumseh K90-55 Overload

Protect your refrigeration and air conditioning systems with the Tecumseh K90-55 Overload, a precision-engineered thermal overload protector designed to safeguard hermetic compressors from excessive amp draw and high-temperature conditions. As an essential component for residential and light commercial HVACR equipment, this manual reset overload monitors the electrical current within the motor windings, specifically protecting the common terminal from overheating. Integrating a Tecumseh compressor overload kit like the K90-55 ensures that your fixed-orifice or TXV systems maintain operational integrity during high-load scenarios or power surges.

This OEM replacement part is built for durability and fast response times, preventing costly motor burnout in single-phase compressors. HVACR technicians value the K90-55 for its straightforward overload protector installation, allowing for efficient field repairs and reduced downtime. By maintaining a reliable safety limit on current flow, this component extends the lifecycle of the compressor assembly, making it a critical addition to any contractor's service truck inventory. Trust in Tecumseh HVAC parts for professional-grade reliability in demanding cooling applications.

• Enhanced Compressor Safety: Effectively interrupts the electrical circuit when current exceeds safe limits, protecting compressor motor windings.
• Precise Thermal Detection: bimetallic sensor responds accurately to shell temperatures and amp surges.
• Broad Compatibility: Engineered for use with Tecumseh AE4430 Series and other compatible 115V hermetic units.
• Compact Design: Allows for easy placement under the terminal cover for quick access during maintenance.

How do I check if the K90-55 overload is tripped?
Using a multimeter, perform a continuity test between the two terminals. If the compressor is cool but you have an open circuit (OL reading), the overload has likely failed or is tripped. If it is a manual reset type, ensure it is reset before testing.

What causes a compressor overload to trip frequently?
Frequent tripping is often caused by a failing run capacitor, refrigerant overcharge, restricted airflow across the condenser coils, or a mechanical issue within the compressor itself causing high friction and higher-than-normal Rated Load Amps (RLA).

Can I replace a different K90 model with the K90-55?
Overloads are calibrated to specific trip curves and current ratings. Always cross-reference the compressor's Bill of Materials (BOM) or the manufacturer’s specifications to ensure the trip point matches the original locked rotor amps (LRA) requirements.

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.