ICP 2-Pole Contactor (30A & 40A, 24V Coil) for RGS150HFAA0AGAA – OEM | Ships Today

Overview

This is the genuine OEM 2-pole definite-purpose contactor for the ICP / Tempstar / Heil RGS150HFAA0AGAA, available in 30-amp (part 1178074) and 40-amp (part 1178211) ratings, both with a 24-volt control coil. The contactor is the electrically operated switch that powers the compressor and condenser fan motor when the thermostat calls for cooling. When the 24V coil energizes, it pulls the contacts closed and delivers line voltage to the load; when the call ends, the contacts open and de-energize the equipment. Pitted, burned, or chattering contacts are one of the most common causes of no-cool and hard-start complaints.

Specifications

Compatibility

Fits the ICP RGS150HFAA0AGAA and related RGS150 family equipment under the Tempstar, Heil, and Comfortmaker brands. Match the amp rating (30A or 40A) and confirm the 24V coil against your unit's wiring diagram and the rating stamped on the existing contactor before ordering.

Installation Guide

1. Safety First – Disconnect power at the disconnect and breaker; verify zero voltage on both line and load terminals with a multimeter.
2. Access – Remove the electrical access panel to expose the contactor.
3. Document – Photograph all line, load, and 24V coil wires before disconnecting.
4. Remove – Label and disconnect the wires, then unfasten the old contactor from its mount.
5. Install – Mount the new contactor and reconnect each wire to its matching terminal per your photo.
6. Test – Restore power, initiate a cooling call, and confirm the contacts pull in and the compressor/fan energize.

Signs You Need a Replacement

• Pitted, burned, or welded contacts.
• Loud chattering or buzzing from the contactor.
• Compressor or condenser fan won't start on a cooling call.
• Coil won't pull the contacts in when 24V is applied.

Shipping & Returns

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