ICP 2-Pole Contactor 30A/40A 24V for RGS101HFAB0AAAA — OEM 1178074/1178211 | Ships Today

Overview

This OEM 2-pole definite purpose contactor is the switching relay for the ICP/Tempstar/Heil RGS101HFAB0AAAA. A 24V signal from the thermostat/control board energizes the coil, pulling in the contacts to send line power to the compressor and condenser fan motor. This listing covers both the 30-amp option (part 1178074) and the 40-amp option (part 1178211), each with a 24V coil — match the amp rating to your unit's nameplate. Contactors are a common failure point: pitted or welded contacts cause hard starts, chatter, or a unit that won't run; a burned-out coil leaves the contactor unable to pull in at all.

Specifications

Compatibility

Fits the ICP family model RGS101HFAB0AAAA and many Tempstar, Heil, and Comfortmaker systems using a 2-pole, 24V-coil contactor. Confirm the amp rating (30A vs 40A) and coil voltage on your old contactor before ordering.

Installation Guide

1. Safety First — Disconnect power at the disconnect/breaker and verify zero voltage with a multimeter on both line legs.
2. Access — Remove the electrical access panel.
3. Document — Photograph every wire on the line, load, and 24V coil terminals before disconnecting.
4. Remove — Transfer wires one at a time, then unfasten and remove the old contactor.
5. Install — Mount the new contactor and reconnect each wire 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

• Pitted, burned, or welded contacts.
• Buzzing or chattering when the unit tries to start.
• Compressor and fan won't energize despite a 24V signal (open coil).
• Contacts stuck closed so the unit won't shut off.

Shipping & Returns

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