Wholesale Sensors Replacement for Pentair TS5L Linear Spa Temperature Sensor 12 Month Warranty

Restore reliable pool and spa temperature monitoring with the Wholesale Sensors Replacement for Pentair TS5L Linear Spa Temperature Sensor, backed by a strong 12-Month Warranty and responsive USA-based product support. Designed for compatible Pentair Compool automation systems, this replacement linear temperature sensor provides the temperature feedback required by the control system to monitor water conditions and operate temperature-dependent pool and spa functions correctly.

The Pentair TS5L is officially identified in Pentair’s current replacement-parts catalog as a Compool linear temperature sensor with red and green wires. It is different from Pentair’s 520272 10K temperature sensor, which Pentair lists separately. Because these sensors use different applications and control-system generations, they should not automatically be treated as interchangeable.

This Wholesale Sensors component is engineered as a perfect OEM-style replacement designed to meet or exceed OEM specifications for compatible TS5L applications. The primary manufacturer part number is TS5L. Pentair installation documentation for this sensor carries P/N 9420590, while some pool-parts catalogs also reference catalog number 9237-16 for the TS5L. Customers should use TS5L as the primary identifier when checking compatibility.

Pentair documentation confirms that the TS5L is designed for Compool pool and spa control systems. Depending on the control configuration, the sensor can be used to monitor water temperature or solar temperature. With compatible CP3800-family controls, it can also be configured for freeze temperature sensing and freeze protection functions.

Pentair’s Solar Systems and Parts documentation specifically identifies TS5L as the temperature sensor for the LX80 Control System and CP3000 family of products, using red and green wires. This makes correct identification especially important for owners maintaining older Compool automation equipment.

For freeze-temperature applications, Pentair’s TS5L installation instructions identify compatibility with CP3800, CP3600, CP3400, CP3810, CP3820, and CP3830 controls. However, compatibility and sensor function depend on how the particular Compool system is configured. Always verify the exact automation system and existing sensor before ordering.

The TS5L also appears as the specified water temperature sensor in Pentair Compool CP-100 systems. The CP-100 installation documentation identifies the system as including a TS5L water temperature sensor and instructs installers to position the sensor at the filter pump.

This is a linear temperature sensor, an important distinction when selecting a replacement. A temperature sensor does more than simply turn a circuit on or off. It produces an electrical response corresponding to the temperature being measured, allowing the automation controller to interpret the condition and use that information when controlling pool or spa equipment.

Accurate temperature feedback is essential for automated pool and spa operation. When used as a water sensor, the TS5L allows the control system to determine the current water temperature and compare it with programmed settings. Depending on the system configuration, this information can affect heating and other temperature-based automation functions.

When used for a solar heating system, the sensor can monitor solar temperature so the controller has the information required for solar-control decisions. Pentair’s instructions specify different installation methods depending on the type of solar collector. For unglazed panels, the sensor is installed next to the solar panels. For glazed panels, Pentair specifies suspending the sensor between the collector and glazing.

On supported CP3800-family systems, the TS5L can also provide temperature information for freeze protection. This application allows compatible automation controls to respond to low ambient temperature conditions according to their programmed freeze-protection logic.

A deteriorated or failed temperature sensor can provide incorrect, intermittent, or missing temperature information. Possible symptoms can include an incorrect pool or spa temperature display, unexpected heating behavior, solar heating that does not respond correctly to temperature conditions, missing temperature readings, or improper temperature-based automation.

These symptoms do not automatically mean the TS5L itself has failed. Pool automation systems depend on several components working together. Before replacing the sensor, inspect the sensor wiring, terminals, splices, controller connections, configuration settings, sensor placement, and related pool equipment.

The wiring configuration is particularly important with the TS5L. Pentair’s installation instructions specify red and green sensor wires. For water-temperature installation, the cable is routed to the Power Center and connected to the WATER temperature terminals, with RED connected to (+) and GREEN connected to (-). For solar-temperature installation, the wires connect to the SOLAR terminals using the same red-positive and green-negative orientation.

The original Pentair installation configuration specifies a 25-foot sensor cable. Pentair documentation also describes UY wire-splicing connectors designed for 22 to 26 gauge wires and suitable for indoor or outdoor use. These details are useful when comparing the existing installation and planning replacement.

For a water-temperature sensor replacement, Pentair instructs the installer to remove the old sensor and cable, use the existing clamp to install the new sensor into the plumbing, route the cable to the Power Center, and connect it to the designated water-temperature terminals. Correct sensor placement and wiring orientation are essential for proper temperature feedback.

Installation should always begin by disconnecting electrical power to the pool or spa automation equipment according to the manufacturer’s procedures. Pool equipment combines electricity and water, so electrical servicing should be completed by a qualified technician when appropriate. Pentair’s CP-100 documentation specifically states that wiring must be performed by a qualified electrician.

Before removing the original sensor, document the mounting position, wiring route, terminal locations, and red/green wire orientation. Inspect the existing cable and connections for corrosion, loose terminals, damaged insulation, water intrusion, broken conductors, or deteriorated splices. A wiring problem can create an incorrect temperature reading even when the sensing element remains functional.

After installation, restore power and compare the temperature displayed by the automation system with an accurate independent thermometer. Allow enough time for the sensor and water conditions to stabilize. If the reading remains incorrect, continue troubleshooting the wiring, controller, configuration, and related equipment before assuming the replacement sensor is defective.

Pool and spa automation systems do not use automotive OBD-II diagnostic trouble codes, so automotive sensor codes do not apply to the Pentair TS5L. Any displayed fault, missing temperature indication, or abnormal controller behavior should be diagnosed using the service information for the specific Compool control system.

It is also important not to substitute the Pentair 520272 solely because it is another Pentair temperature sensor. Pentair’s current catalog lists the TS5L as a linear Compool sensor, while 520272 is separately identified as a 10K water temperature sensor. Verify the required sensor technology and control system before purchasing.

Each Wholesale Sensors replacement is built for dependable pool and spa temperature monitoring and is rigorously tested for electrical response, temperature-sensing performance, continuity, connection integrity, and reliability. The goal is stable temperature feedback for compatible Pentair Compool automation applications.

Wholesale Sensors specializes in aftermarket sensing components for pool and spa equipment, HVAC systems, appliances, commercial refrigeration, automotive applications, RV equipment, foodservice systems, and industrial equipment. Our replacement products are supported by knowledgeable USA-based customer assistance.

Every Wholesale Sensors Replacement for Pentair TS5L Linear Spa Temperature Sensor is backed by a strong 12-Month Warranty and responsive USA-based product support. Before ordering, verify that your existing automation system requires the TS5L linear sensor with red and green wiring, rather than a different Pentair temperature sensor.

With confirmed compatibility, this replacement provides dependable water, solar, or supported freeze-temperature monitoring, application-specific fit, rigorously tested performance, and reliable temperature feedback for compatible Pentair Compool pool and spa automation systems.