ICP 1-Pole 30A Contactor for WCH3484GKC100 — 24V Coil w/ Shunt | Ships Today
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Overview
This OEM single-pole contactor (part #1172472) is the primary switching relay for the ICP/Tempstar/Heil WCH3484GKC100 heat pump condensing unit. Rated at 30 amps with a 24-volt control coil and an integrated shunt, it energizes the compressor and outdoor fan motor when the thermostat calls for cooling or heating. The contactor closes its main contacts to pass line voltage to the compressor; when the call ends, the coil de-energizes and a spring opens the contacts. Worn, pitted, or welded contacts are one of the most common no-cool/no-heat failures in the field — a unit that hums but won't start, or an outdoor fan that runs while the compressor stays silent, often points straight to a failed contactor.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1172472 |
| Type | Single-Pole (1P) Definite Purpose Contactor |
| Brand | ICP (Tempstar / Heil) |
| Contact Rating | 30 Amps |
| Coil Voltage | 24V |
| Poles | 1 |
| Features | Integrated shunt |
| Fitment | OEM direct replacement |
Compatibility
Direct-fit replacement for the ICP WCH3484GKC100 heat pump and related WCH3484 series condensing units sold under the ICP, Tempstar, Heil, and Comfortmaker brands. Always confirm the contactor's coil voltage and amp rating against the unit's wiring diagram before installing.
Installation Guide
- Safety First — Disconnect power at the outdoor disconnect and breaker. Verify zero voltage at the contactor terminals with a multimeter before touching any wiring.
- Access — Remove the condenser service panel to expose the control compartment.
- Document — Photograph all wire connections (line, load, and 24V coil leads) before disconnecting anything.
- Remove — Label and disconnect the line and load wires, then the 24V coil leads. Unscrew the old contactor from the mounting bracket.
- Install — Mount the new contactor, then reconnect every wire exactly per your photo, matching line, load, and coil terminals.
- Test — Restore power and call for cooling. Confirm the contactor pulls in cleanly and the compressor and fan start.
Signs You Need a Replacement
- Outdoor unit hums or buzzes but the compressor won't start.
- Visibly pitted, burned, or welded contacts.
- Compressor runs continuously and won't shut off (stuck closed).
- Chattering or intermittent operation when the coil is energized.
Shipping & Returns
Ships same day on orders placed before 3 PM CST. 30-day hassle-free 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