Weil McLain 381-330-028 Control Module

The Weil-McLain 381-330-028 Control Module is the critical electronic logic center for managing Weil-McLain CGBoiler sequences and burner operations. Engineering specifications confirm that the 381-330-028 is the direct replacement for 381-330-022, ensuring seamless HVAC part compatibility for legacy system maintenance. This integrated boiler control monitors ignition timing, flame rectification, and safety limit circuits to maintain precise thermal output. It is designed for commercial and residential boiler repair where reliable microprocessor-based control is required to optimize combustion cycles. As a veteran technician knows, maintaining the OEM burner control module is essential for preventing lockout errors and ensuring the high-limit sensors communicate effectively with the gas valve. This module handles 24VAC input and manages the internal diagnostic logic for efficient condensing boiler troubleshooting, making it a staple for field repairs involving the Weil-McLain Gold series boilers and related hydronic equipment.

Key Benefits

• OEM Compatibility: Specifically engineered as the verified 381-330-022 replacement for accurate fitment.
• Precision Logic: Advanced integrated ignition control manages spark timing and flame sensing protocols.
• Diagnostic Reliability: Simplifies boiler troubleshooting by providing stable signal processing for safety limit strings.
• Built for Durability: Robust circuit architecture handles the continuous duty cycles typical of high-efficiency hydronic systems.

Common Questions

Is the 381-330-028 compatible with older 381-330-022 modules?
Yes, this unit is the designated successor and direct cross-reference for the 022 version, meeting all original technical specifications.

What are the symptoms of a failing Weil-McLain control module?
Common indicators include intermittent ignition failure, erratic flame signal dropouts, or failure to initiate the inducer motor or gas valve sequence after the safety loop is closed.

Does this module require specialized configuration?
This HVAC circuit board is designed for "plug-and-play" installation into compatible Weil-McLain wire harnesses, though a combustion analysis is recommended following any control component replacement.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.