Restore Accurate Water Temperature Readings in Hayward-Style Pool Systems

Accurate temperature data is essential for proper operation of pool heaters, heat pumps, and automation systems. The Swimables Hayward® Style 10K Temperature Sensor (SW-97-012) is a precision replacement sensor designed to restore correct temperature readings in compatible Hayward-style pool control systems.

When a temperature sensor fails or drifts out of calibration, pools may overheat, underheat, or display incorrect readings on automation panels. This can lead to poor comfort, inefficient heater operation, and unnecessary equipment wear. Replacing a faulty sensor with the SW-97-012 restores accurate temperature feedback so the system can regulate heating properly.

This is a pool-specific temperature sensor, not a universal thermostat or consumer temperature probe.

What a Pool Temperature Sensor Does

A temperature sensor continuously measures water temperature and sends that data to the pool’s heater or automation controller. The controller uses this information to decide when to turn heating equipment on or off.

A properly functioning 10K temperature sensor allows the system to:

• Display accurate pool or spa water temperature

• Regulate heaters and heat pumps efficiently

• Maintain consistent comfort levels

• Prevent overheating or short-cycling

• Support automation schedules and setpoints

When the sensor fails, the system loses reliable feedback, causing erratic or incorrect heating behavior.

Temperature sensor replacement is often performed alongside components from the Pool Automation Parts Collection.

Hayward® Style 10K Sensor Compatibility

The Swimables SW-97-012 is engineered as a Hayward-style 10K thermistor sensor, designed to match the resistance curve and physical characteristics required by compatible Hayward control systems.

Compatibility highlights include:

• Hayward-style pool automation systems

• Hayward-compatible heaters and controllers

• 10K resistance curve

• 15-foot cable for flexible routing

• Designed for inline or sensor-port installation

This sensor is intended for style compatibility, meaning it mirrors the electrical behavior used by Hayward systems that require a 10K temperature sensor.

Common Signs a Temperature Sensor Needs Replacement

Temperature sensors can fail gradually or suddenly due to moisture intrusion, chemical exposure, or cable damage. Replace the sensor if you notice:

• Incorrect temperature readings on the control panel

• Heater turning on or off at the wrong times

• Pool overheating or failing to reach set temperature

• Temperature readings stuck at one value

• Error messages related to temperature input

In many cases, heaters are blamed for heating problems when the real issue is a faulty temperature sensor providing bad data.

If heating issues persist, related equipment in the Pool Heaters Collection should be evaluated.

10K Thermistor Design Explained

The term “10K” refers to the sensor’s resistance value—approximately 10,000 ohms at a specific reference temperature. Hayward-style control systems rely on this resistance curve to calculate accurate water temperature.

Using the correct 10K sensor is critical:

• Incorrect resistance values cause false readings

• Mismatched sensors confuse control boards

• Heater logic becomes unreliable

• Automation systems may display errors

The SW-97-012 is engineered to provide the correct resistance behavior expected by Hayward-style systems.

15-Foot Cable for Flexible Installation

This sensor includes a 15-foot cable, allowing for clean routing to control panels or heaters without splicing or extensions.

Benefits of the extended cable include:

• Easier installation in equipment pads

• Reduced need for junction boxes

• Cleaner, more professional wiring

• Flexibility in sensor placement

Longer cable length helps ensure proper installation even when equipment layouts vary.

Built for Pool Equipment Environments

The Swimables SW-97-012 temperature sensor is manufactured specifically for swimming pool conditions.

Design considerations include:

• Resistance to chlorinated and saltwater exposure

• Durable sensor housing

• Weather-resistant cable jacket

• Reliable signal transmission

These features ensure consistent performance in outdoor equipment pads and harsh pool environments.

Installation Considerations

Replacing a pool temperature sensor is generally straightforward but requires correct placement and wiring.

General Installation Overview:

1. Turn off power to the heater and automation system

2. Remove the old temperature sensor

3. Install the new SW-97-012 sensor in the designated port

4. Route the cable to the control board

5. Connect wiring per system specifications

6. Restore power and verify accurate temperature readings

Proper placement is important—incorrect sensor location can result in delayed or inaccurate readings.

Professional installation is recommended if you are unfamiliar with pool automation wiring.

Ideal Applications

The Swimables SW-97-012 Hayward-style 10K temperature sensor is ideal for:

• Hayward-style pool automation systems

• Heater temperature feedback

• Pool and spa temperature monitoring

• Replacing corroded or inaccurate sensors

• Preventative maintenance during heater service

This sensor is commonly replaced during heater troubleshooting or automation upgrades.

Supports Heater and Automation Performance

Accurate temperature data allows heaters and controllers to operate efficiently. A properly functioning sensor helps:

• Prevent heater short-cycling

• Maintain consistent water temperature

• Reduce energy waste

• Protect heating equipment

For complete system performance, temperature sensors work alongside components from the Pool Equipment Collection.

Why Choose Swimables Replacement Sensors

Swimables replacement sensors are engineered to match OEM-style electrical characteristics while offering a cost-effective alternative to factory parts.

Key advantages include:

• Accurate 10K resistance curve

• Hayward-style compatibility

• Pool-industry-specific construction

• Reliable long-term performance

The SW-97-012 is a trusted solution for restoring correct temperature feedback in Hayward-style pool systems.

Buy with Confidence from Benchmark Pool Supply

At Benchmark Pool Supply, we stock professional-grade pool automation and heater components designed for real-world pool systems—not generic electronics. The Swimables Hayward® Style 10K Temperature Sensor – 15 ft Cable (SW-97-012) is selected for accurate readings, dependable operation, and long service life.

When you purchase from Benchmark Pool Supply, you receive:

• Pool-specific replacement components

• Clear compatibility guidance

• Fast shipping or convenient local pickup

• Support from knowledgeable pool professionals

We help ensure your heater and automation systems work the way they should.