Weil-McLain 383-500-602 – Heat Exchanger Temperature Sensor Kit

Product Overview

The Weil-McLain 383-500-602 is a temperature sensor kit designed for accurate monitoring of boiler water temperatures. This kit includes two sensors for return and supply lines and is compatible with Weil-McLain Ultra Gas Boilers and Ultra Commercial Boilers (Sizes 550, 750).

These sensors ensure efficient boiler operation, proper safety control, and reliable temperature regulation for residential and commercial heating systems.

✅ Key Features

• ✔️ Kit includes two temperature sensors (return and supply)

• ✔️ Compatible with Weil-McLain Ultra Gas and Ultra Commercial Boilers

• ✔️ Ensures accurate water temperature monitoring

• ✔️ Helps maintain efficient boiler operation and safety

• ✔️ OEM-quality replacement part for long-lasting performance

📊 Specifications

⚠️ Common Symptoms Indicating Replacement

• Inaccurate boiler temperature readings

• Erratic boiler operation or cycling

• Boiler safety lockouts or error codes

• Inconsistent heating performance

❓ Frequently Asked Questions (FAQ)

Q: How many sensors are included in this kit?
A: This kit includes two sensors, one for the return line and one for the supply line.

Q: Which boilers is this kit compatible with?
A: Compatible with Weil-McLain Ultra Gas Boilers and Ultra Commercial Boilers (Sizes 550, 750).

Q: Can these sensors be used as standalone replacements?
A: Yes, each sensor can replace a faulty return or supply sensor, but it is recommended to replace both for balanced readings.

Q: Why is accurate temperature sensing important?
A: Proper sensor function ensures efficient boiler operation, safe temperature control, and prevents boiler lockouts.

🛒 Shopping Tips

• Verify your boiler model and size before ordering

• Replace both sensors if one has failed to ensure accurate temperature readings

• Always use OEM sensors for reliable performance