ICP 2-Pole 30A Contactor for RGS120LTAA0AGAA – 24V Coil | Ships Today

Overview

This genuine OEM 2-pole contactor (part #1178074) is the switching relay that energizes the compressor and condenser fan circuits in your ICP, Tempstar, and Heil equipment. Rated for 30 amps with a 24-volt control coil, the contactor closes when the thermostat calls for cooling, allowing line voltage to pass to the high-amp loads. Over time the silver contacts pit, arc, and weld from repeated switching, which leads to a humming unit that will not start, intermittent cooling, or a compressor that runs continuously because the contacts have fused closed. Replacing a worn contactor is one of the most common HVAC service repairs and restores reliable, safe switching.

Specifications

Compatibility

Engineered as the factory replacement for the ICP / Tempstar / Heil model RGS120LTAA0AGAA gas furnace and matched condensing units. Always confirm your existing contactor is 2-pole with a 30A rating and 24V coil before installing.

Installation Guide

1. Safety First – Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
2. Access – Remove the unit service panel.
3. Document – Photograph every wire and terminal before disconnecting.
4. Remove – Label and pull the line, load, and 24V coil leads, then unscrew the old contactor from its bracket.
5. Install – Mount the new contactor and reconnect each lead exactly per your photo.
6. Test – Restore power, call for cooling, and confirm the contactor pulls in cleanly with no chatter.

Signs You Need a Replacement

• Unit hums but the compressor and fan will not start.
• Visible pitting, burning, or melted plastic on the contactor.
• Chattering or buzzing when the thermostat calls for cooling.
• Compressor runs nonstop because contacts have welded closed.

Shipping & Returns

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