Copeland 943-0033-00 Comfort Alert

Ultra Tech Comfort Alert

943-0033-00 is the direct replacement for 543-0032-00

Copeland 943-0033-00 Comfort Alert Module – UltraTech Diagnostic System for Copeland Scroll Compressors

The Copeland 943-0033-00 Comfort Alert is an advanced diagnostic module engineered to streamline troubleshooting of HVAC systems. Designed specifically for systems with Copeland Scroll compressors, this UltraTech Comfort Alert module monitors compressor and thermostat activity to accurately identify electrical and system-related failures—without the need for additional sensors.

Key Features:

• OEM Diagnostic Module – Genuine Copeland Comfort Alert for HVAC systems.

• Smart Troubleshooting – Detects and diagnoses faults in air conditioning and heat pump systems.

• LED Flash Codes – Built-in flashing LED indicator displays specific alert codes for fast diagnostics.

• Broad Compatibility – Works with Emerson thermostats in the 1F9X and 1F8X series that feature an "L" terminal for diagnostics.

• Advanced Protection – Compatible thermostats with “CA” models can display alert codes and automatically shut off the compressor to prevent damage.

Application Support:

• Cooling-only systems

• Heat pump systems

• Two-stage compressors

• Commercial three-phase units

Specifications:

• Part Number: 943-0033-00

• Product Type: Diagnostic Module

• Temperature Range: -40°F to 150°F

• Mounting Location: Electrical box near the compressor contactor

Why Choose Comfort Alert?
Reduce service time, avoid guesswork, and protect your HVAC investment with Comfort Alert, the trusted choice for professionals using Copeland Scroll compressor systems.