ICP Contactor for RGS300HEFA0AAAA — 2-Pole 30A & 3-Pole 60A 24V Coil | Ships Today

Overview

This OEM definite-purpose contactor is the switching relay that energizes high-voltage loads in your ICP RGS300HEFA0AAAA system. Two factory-correct options are covered: a 2-pole 30A contactor (OEM 1171554) and a 3-pole 60A contactor (OEM 1183142), both driven by a 24V control coil. When the thermostat or control board calls, the 24V coil pulls the contacts closed and sends line voltage to the load. Pitted, welded, or chattering contacts are the most common failure — symptoms include the unit not starting, a loud buzz or hum, or contacts that stick closed and won't shut the system off.

Specifications

Compatibility

Engineered as a direct OEM fit for the ICP / Tempstar / Heil RGS300HEFA0AAAA. Verify your existing contactor's pole count, amp rating, and 24V coil before ordering — match the OEM part number to your unit's parts list for an exact replacement.

Installation Guide

1. Safety First — Disconnect power at the breaker and disconnect switch, then verify zero voltage with a multimeter.
2. Access — Remove the service panel to expose the contactor.
3. Document — Photograph every wire and terminal position before disconnecting anything.
4. Remove — Label and disconnect the line, load, and 24V coil leads, then unscrew the old contactor from its bracket.
5. Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
6. Test — Restore power and confirm the contactor pulls in cleanly with no chatter when the system calls.

Signs You Need a Replacement

• System won't start even though the 24V coil is energized.
• Loud buzzing, humming, or chattering from the contactor.
• Burnt, pitted, or welded contacts visible on inspection.
• Unit runs continuously because contacts are stuck closed.

Shipping & Returns

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