TH4150 Refrigerator Thermistor by XMXZYX – Copper Waterproof Sensor

Description

Product Overview

The TH4150 Refrigerator Thermistor by XMXZYX is engineered to deliver consistent and accurate temperature monitoring for both residential and commercial refrigeration units. Constructed from high‑grade copper, the sensor provides excellent thermal conductivity, ensuring rapid detection of temperature changes. Its advanced over‑molding process creates a fully waterproof enclosure, protecting the internal components from moisture, condensation, and harsh operating environments. The compact form factor measures 3.9 x 3.82 x 2.36 inches and weighs only 4.6 ounces, making it easy to install in tight spaces without compromising performance.

Designed as a direct replacement for part numbers 4204150S, 3014350, and 4204150, the TH4150 fits seamlessly into existing Sub‑Zero freezer and refrigerator assemblies. The sensor operates on an AC power source and does not require any batteries, simplifying installation and reducing long‑term maintenance costs. With an annual resistance value drift rate of ≤5‰, the thermistor maintains its calibration over years of use, delivering reliable data to your control system.

Usage

This thermistor is ideal for a variety of refrigeration applications, including home freezers, commercial walk‑in coolers, and specialty Sub‑Zero units used in gourmet kitchens or laboratory settings. Its waterproof construction allows it to be positioned in environments where exposure to water or ice is common, such as freezer walls, evaporator coils, or interior air ducts. The fast response time ensures that temperature fluctuations are detected instantly, enabling precise control algorithms to adjust compressor cycles and maintain the desired temperature setpoint.

Whether you are a professional technician performing a routine service, a DIY enthusiast upgrading an older unit, or a facility manager seeking to improve energy efficiency, the TH4150 provides a straightforward solution. The sensor’s universal compatibility with Sub‑Zero models means you can replace a faulty or missing component without the need for extensive system modifications. Installation typically involves disconnecting power, removing the old thermistor, and securing the new unit with the supplied mounting hardware.

Why Choose Us

Choosing the TH4150 from XMXZYX means selecting a product backed by rigorous quality assurance processes. Each sensor undergoes multiple rounds of testing, including thermal cycling, moisture resistance, and electrical stability checks, to guarantee performance that meets or exceeds OEM specifications. Our commitment to durability is reflected in the sensor’s resistance to corrosion and its ability to operate reliably over extended periods.

In addition to the robust construction, XMXZYX offers a one‑year free replacement service, giving you confidence that any unexpected issues will be resolved quickly and without additional cost. Our responsive customer support team is available to assist with technical questions, installation guidance, and warranty claims, ensuring a smooth experience from purchase to long‑term operation.

Key Features

• High‑conductivity copper core for rapid temperature detection
• Waterproof over‑molded housing protects against moisture and condensation
• Direct replacement for 4204150S, 3014350, and 4204150 models
• Low resistance drift (≤5‰ per year) ensures long‑term accuracy
• One‑year free replacement service and dedicated technical support

FAQ

What appliances are compatible with the TH4150 thermistor?

The TH4150 is compatible with Sub‑Zero freezers and refrigerators that originally use part numbers 4204150S, 3014350, or 4204150. It can also be used in other brands where the thermistor specifications match these models.

Is any special tooling required for installation?

No special tools are needed. The sensor comes with standard mounting hardware, and installation can be completed with basic hand tools such as a screwdriver and pliers.

How does the waterproof design benefit my refrigeration system?

The waterproof over‑mold protects the internal copper element from exposure to water, ice, and humidity, which can cause corrosion or short‑circuiting in non‑sealed sensors. This extends the service life and maintains reliable performance in demanding environments.

What is the warranty coverage for the TH4150?

XMXZYX provides a one‑year free replacement warranty that covers any manufacturing defects or premature failures. Customers can contact our support team to arrange a replacement at no cost.

Can the TH4150 be used in DIY repair projects?

Yes, the sensor is designed for easy installation by both professional technicians and knowledgeable DIY users. Detailed installation instructions are included, and our support staff can answer any questions you may have during the process.