ICP 40A Contactor for WCA4604GKA100 — Definite Purpose | Ships Today
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Overview
This OEM definite purpose contactor (part number 1176763) is the heavy-duty electrical switch that energizes the compressor and condenser fan motor in your ICP / Tempstar / Heil WCA4604GKA100 condensing unit. When the thermostat calls for cooling, the contactor coil pulls in the main contacts and sends line voltage to the outdoor components. This unit is rated for 40 amps, giving it the contact capacity to handle the inrush and run current of larger condensing units. Because the contacts arc every time they make and break, contactors are one of the most common HVAC wear parts. Failure symptoms include pitted or welded contacts, a buzzing or chattering coil, an outdoor unit that won't start, or a condenser that runs nonstop. Replacing a worn 40A contactor restores reliable starts and protects the compressor from chatter and voltage-drop damage.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1176763 |
| Type | Definite Purpose Contactor |
| Brand | ICP / Tempstar / Heil |
| Contact Rating | 40 Amps |
| Fit | OEM Replacement |
Compatibility
Direct OEM fit for the ICP / Tempstar / Heil model WCA4604GKA100 condensing unit. This is the factory-specified contactor for that system and a correct replacement across many ICP-family air conditioners and heat pumps originally built with part 1176763. Confirm your existing contactor is rated for 40 amps and matches your coil voltage 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 service panel to expose the electrical compartment.
- Document — Photograph all wire positions before disconnecting anything.
- Remove — Note the line, load, and coil leads, disconnect them, then unscrew and lift out the old contactor.
- Install — Mount the new 40A contactor and reconnect each wire exactly as shown in your photo.
- Test — Restore power and start a cooling call; confirm the coil pulls in smoothly and the compressor and fan operate.
Signs You Need a Replacement
- Outdoor unit hums or buzzes but the compressor won't start.
- Pitted, burned, or welded contacts.
- Condenser runs continuously and won't shut off.
- Chattering or buzzing from the contactor coil during operation.
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