ICP 2-Pole 30A/40A Contactor for RGS150HDBA0AGAA — 24V Coil | Ships Today

Overview

This OEM 2-pole definite purpose contactor is the switching relay that energizes the high-voltage circuit in your ICP Tempstar Heil RGS150HDBA0AGAA gas furnace package. When the 24V control signal reaches the coil, the contactor pulls in and passes line voltage to the blower or condenser load. Available as a 30A (OEM 1178074) or 40A (OEM 1178211) version, both with a 24V coil. A failed contactor is one of the most common no-start causes — symptoms include a buzzing or chattering relay, pitted or welded contacts that won't drop out, or a system that fails to start despite a good call for heat or cool.

Specifications

Compatibility

Direct OEM fit for the ICP Tempstar Heil RGS150HDBA0AGAA and related RGS150 series gas furnaces. Confirm whether your unit uses the 30A (1178074) or 40A (1178211) rating before ordering — match the amp rating and 24V coil of the original.

Installation Guide

1. Safety First — Disconnect power at the disconnect and breaker; verify zero voltage with a multimeter.
2. Access — Remove the service panel to expose the contactor.
3. Document — Photograph all line and load wires before disconnecting.
4. Remove — Label and disconnect line, load, and 24V coil leads; unscrew the old contactor from the bracket.
5. Install — Mount the new contactor, reconnect each wire per your photo, and torque terminals to spec.
6. Test — Restore power and confirm the contactor pulls in and drops out cleanly on a call.

Signs You Need a Replacement

• Loud buzzing, humming, or chattering from the relay
• Burned, pitted, or welded contacts
• System won't start despite 24V at the coil
• Contactor fails to drop out when the call ends

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.