02-3928 Hydrotherm High Limit Switch

Product Overview

The Hydrotherm 02-3928 High Limit Switch is a critical boiler safety component designed to protect against overheating by shutting down the burner when water temperature exceeds safe operating limits. This replacement switch ensures your Hydrotherm system continues to run safely and reliably.

Key Features

• ✅ Safety Protection – Prevents boiler overheating by automatically shutting off at high temperature.

• ✅ OEM Replacement – Direct replacement part for Hydrotherm boilers.

• ✅ Durable Construction – Built for long-lasting reliability.

• ✅ Easy Installation – Fits seamlessly with compatible Hydrotherm models.

Specifications

• Part Number: 02-3928

• Type: High Limit Safety Switch

• Function: Cuts power to burner at set temperature

• Application: Hydrotherm heating systems

Common Symptoms of Failure

• Boiler overheating

• Boiler shutting down unexpectedly

• Error/fault codes related to limit switch

• Loss of heat due to safety lockout

Shopping Tips 🛒

• 🔎 Check Compatibility: Confirm your boiler model matches the 02-3928 requirement.

• 🛠️ Replace in Pairs (if applicable): If your system uses multiple limit switches, replacing both at the same time can prevent future downtime.

• 📏 Match Specifications: Verify temperature and wiring specs before ordering.