ICP 2-Pole Contactor for RGS150STAA0AGAA – 30A & 40A 24V Coil | Ships Today

Overview

Genuine OEM 2-pole definite-purpose contactors for the ICP / Tempstar / Heil RGS150STAA0AGAA. This listing covers the unit's contactor options: a 2-pole 30A contactor (OEM 1178074) and a 2-pole 40A contactor (OEM 1178211), both with a 24V control coil. A contactor is the electrically operated switch that closes the line-voltage circuit when the 24V thermostat/control signal energizes the coil, sending power to the compressor and condenser fan. Contactors are high-cycle wear items: the coil can burn open and the silver contacts pit, weld, or corrode over time. A failed contactor is one of the most common causes of a unit that won't start, chatters, or runs continuously.

Specifications

Compatibility

Built for the ICP RGS150STAA0AGAA and used across many ICP-family Tempstar, Heil, and Comfortmaker units. Match the amp rating (30A or 40A) and the 24V coil to the part called out in your unit's wiring diagram before ordering.

Installation Guide

1. Safety First – Disconnect power at the disconnect and breaker, then confirm zero voltage with a multimeter across the line terminals.
2. Access – Remove the electrical control panel cover.
3. Document – Photograph all line, load, and 24V coil wiring before removing any leads.
4. Remove – Transfer wires one at a time or label each lead, then unbolt the old contactor from the panel.
5. Install – Mount the new contactor, reconnect every wire to the matching terminal per your photo, and torque to spec.
6. Test – Restore power, call for cooling/heating, and confirm the contactor pulls in cleanly and the unit energizes.

Signs You Need a Replacement

• Unit won't start or hums but won't pull in.
• Loud chattering or buzzing at the contactor.
• Pitted, blackened, or welded contacts.
• Compressor/fan runs continuously even with no call.

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day returns on unused parts. Backed by the National HVAC Parts fitment guarantee.