ICP 2-Pole 30A 24V Contactor for RGS150LECB0AAAA — OEM 1178074 | Ships Today

Overview

This genuine OEM 2-pole, 30-amp contactor (part number 1178074) with a 24-volt coil is the main switching relay for the ICP RGS150LECB0AAAA. When the thermostat calls for cooling, the 24V control signal energizes the coil, pulling the contacts closed to deliver line voltage to the compressor and condenser fan motor. Contactors are one of the most common HVAC failure points because the contacts arc and pit every time they open and close. A failed contactor shows up as a system that won't start, a unit that hums but won't engage, or contacts that weld shut and keep the compressor running. Replacing it restores reliable, clean switching.

Specifications

Compatibility

Built for the ICP RGS150LECB0AAAA and shared across many Tempstar, Heil, and Comfortmaker systems using a 2-pole 30A / 24V coil contactor. Verify your model and serial number on the rating plate, and confirm coil voltage and pole count before ordering.

Installation Guide

1. Safety First — Disconnect power at the disconnect and breaker, and verify zero voltage with a multimeter before touching the contactor.
2. Access — Remove the electrical service panel to expose the contactor and wiring.
3. Document — Photograph every wire and terminal location before disconnecting anything.
4. Remove — Transfer wires one at a time, or label them, then unscrew the old contactor from its bracket.
5. Install — Mount the new contactor, reconnect line, load, and 24V coil leads exactly per your photos.
6. Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly and the unit starts.

Signs You Need a Replacement

• Outdoor unit hums but the compressor and fan won't start
• Buzzing or chattering from the contactor
• Pitted, burned, or welded contacts visible on inspection
• System won't shut off 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.