ICP Contactor for WCH3184GKB1 — 1-Pole 30A 24V | Ships Today
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Overview
This OEM single-pole 30-amp contactor with shunt (part #1172472) is the high-voltage relay that powers the compressor and outdoor fan on the ICP / Heil / Tempstar WCH3184GKB1 heat pump. When the thermostat calls, the 24V control circuit energizes the contactor coil and pulls the contacts closed, sending line voltage to the compressor and condenser fan motor. The integrated shunt provides the correct electrical path for this 1-pole configuration. Contactors are one of the most common wear items in any outdoor unit — the contacts pit, arc, and eventually weld after years of cycling, and insects frequently nest beneath the plunger. Typical failure symptoms include a unit that hums but won't start, loud chattering, or a system that won't shut off because the contacts have welded together. Installing the correct OEM 30A contactor restores clean, reliable switching of the compressor and fan.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1172472 |
| Type | Definite Purpose Contactor (with shunt) |
| Brand | ICP / Heil / Tempstar |
| Poles | 1-Pole |
| Contact Rating | 30A |
| Coil Voltage | 24V |
| Fitment | OEM Direct Replacement |
Compatibility
Designed for the ICP / Heil / Tempstar WCH3184GKB1 heat pump and other WCH-series condensing units that use the 1172472 single-pole 30A contactor. The same contactor is used across many Comfortmaker and Arcoaire outdoor units of comparable tonnage. Confirm pole count, amp rating, and 24V coil before ordering.
Installation Guide
- Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.
- Access — Remove the outdoor unit's electrical access panel.
- Document — Photograph all line, load, and 24V coil wire positions before disconnecting.
- Remove — Transfer one wire at a time, or label each lead, then unscrew the old contactor from its mounting bracket.
- Install — Mount the new 1172472 contactor and reconnect every line, load, and coil wire exactly per your photo.
- Test — Restore power and start a cycle; confirm the contactor pulls in cleanly and the compressor and fan energize.
Signs You Need a Replacement
- Outdoor unit hums but the compressor and fan won't start
- Burnt, pitted, or welded contacts visible on the contactor
- System won't shut off because the contacts are stuck closed
- Buzzing or chattering at the contactor when the thermostat calls
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