ICP 1-Pole 30A Contactor for WCA3242GKR1 — 24V Coil with Shunt | Ships Today

Overview

This OEM single-pole definite-purpose contactor (part number 1172472) is the primary switching relay for ICP, Tempstar, and Heil WCA3242GKR1 condensing units. Rated at 30 amps with a 24-volt control coil and an integrated shunt, the contactor energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. When the 24V coil receives power, the magnetic contacts close and pass line voltage to the outdoor unit; when the call ends, the contacts spring open and de-energize the system. Because it cycles every time the air conditioner runs, the contactor is one of the highest-wear components in the condensing unit. Common failure symptoms include pitted or welded contacts that keep the compressor running continuously, a chattering or buzzing sound from a failing coil, and a unit that will not start because the contacts no longer close. A burnt smell or visible arcing damage on the contact points is a clear sign the part has reached the end of its service life.

Specifications

Compatibility

Engineered as a direct OEM replacement for the ICP / Tempstar / Heil WCA3242GKR1 condensing unit. This 1-pole 30A 24V contactor is also used across many ICP-family air conditioners and heat pumps that originally shipped with part 1172472. Always confirm your existing contactor's amp rating, pole count, and coil voltage before installing.

Installation Guide

1. Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage at the contactor terminals with a multimeter.
2. Access — Remove the condensing unit's service panel to expose the electrical compartment.
3. Document — Photograph all line, load, and 24V coil wires before disconnecting anything.
4. Remove — Label and disconnect the wires, then unscrew the old contactor from its mounting bracket.
5. Install — Mount the new contactor and reconnect each wire exactly as shown in your photo, matching line and load sides and the 24V coil terminals.
6. Test — Restore power, call for cooling, and confirm the contacts pull in and the compressor and fan energize.

Signs You Need a Replacement

• Compressor runs continuously or won't shut off (welded contacts)
• Loud buzzing, humming, or chattering from the contactor
• Outdoor unit won't start even though the thermostat calls for cooling
• Visible pitting, burning, or arcing on the contact points

Shipping & Returns

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