ICP 1-Pole 30A Contactor for WCA3242AKN300 — 24V Coil with Shunt | Ships Today
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Overview
This OEM single-pole definite-purpose contactor (part number 1172472) is the principal switching relay for ICP, Tempstar, and Heil WCA3242AKN300 condensing units. Rated at 30 amps with a 24-volt control coil and an integrated shunt, it drives the compressor and condenser fan motor each time the thermostat calls for cooling. When 24V reaches the coil, the contacts close and pass line voltage to the outdoor unit; when the call ends, the contacts open and shut the system down. Because the contactor cycles with every cooling call, its contacts wear out faster than most other parts in the unit. Common failure symptoms include pitted or welded contacts that leave the compressor running nonstop, a buzzing or chattering coil, and a condenser that won't start because the contacts no longer close. Visible burning or arcing on the contact points is a sure sign the contactor needs replacement.
Specifications
| Spec | Value |
|---|---|
| OEM Part Number | 1172472 |
| Type | Definite-Purpose Contactor |
| Brand | ICP / Tempstar / Heil |
| Poles | 1 (Single Pole) |
| Contact Rating | 30 Amps |
| Coil Voltage | 24V |
| Features | Integrated Shunt |
| Fitment | OEM Direct Replacement |
Compatibility
Engineered as a direct OEM replacement for the ICP / Tempstar / Heil WCA3242AKN300 condensing unit. This 1-pole 30A 24V contactor also serves many ICP-family air conditioners and heat pumps originally equipped with part 1172472. Always confirm the amp rating, pole count, and coil voltage of your current contactor before installing.
Installation Guide
- Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage at the contactor terminals with a multimeter.
- Access — Remove the condensing unit's service panel to expose the electrical compartment.
- Document — Photograph all line, load, and 24V coil wires before disconnecting anything.
- Remove — Label and disconnect the wires, then unscrew the old contactor from its mounting bracket.
- 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.
- 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.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days