International Comfort Products 1178623 Comfort Alert Diagnostic Module for HVAC Systems

The International Comfort Products 1178623 Comfort Alert Module is a genuine OEM diagnostic module designed for troubleshooting heat pump and air conditioning system failures. By continuously monitoring compressor operation and thermostat demand signals, this module helps service technicians identify the root cause of electrical faults, refrigerant issues, and pressure anomalies — without the need for additional sensors.

Key Features:

• Installs directly in the outdoor unit electrical box near the compressor contactor
• Monitors Copeland Scroll compressor run, common, and start wires (R, C, S) for real-time diagnostics
• Flashing LED indicator displays ALERT codes to guide technicians quickly to the fault source
• Reduces system downtime by enabling faster, more accurate diagnosis
• Compatible with Emerson thermostats in the 1F9X and 1F8X families featuring a diagnostic "L" terminal connection
• Advanced "CA" model thermostat integration allows alert codes to display on-screen and can automatically shut off the compressor to prevent damage
• Genuine OEM replacement part — direct factory replacement

Cross-Reference Part Numbers: Emerson / Copeland 943-0033-00, 543-0033-02, 2007ECT-46, AF17E001F, 6615594

Compatible Brands: ICP, Heil, Tempstar, Arcoaire, Comfortmaker, Snyder General, KeepRite, Day & Night

This module must be installed and serviced by qualified HVAC personnel only. Disconnect all power before installation or servicing.