ICP 1-Pole 40A Contactor for WPG3604130LKC1 – 24V Coil | Ships Today
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Overview
This OEM ICP definite-purpose contactor (part #1173690) is the 1-pole, 40-amp, 24-volt-coil relay that switches line power to the compressor and condenser fan in your WPG3604130LKC1 unit. When the thermostat calls for cooling, the 24V control signal energizes the coil, pulling the contacts closed to deliver high-voltage power to the outdoor unit. Because it makes and breaks high current thousands of times a season, the contacts eventually pit, burn, or weld — and the coil can open or stick. Pitted contacts cause hard starts, chattering, and voltage drop; welded contacts keep the compressor running even after the thermostat is satisfied. Replacing a worn 40A contactor restores clean, reliable switching and protects the compressor from low-voltage damage.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1173690 |
| Type | Definite Purpose Contactor, Single Pole |
| Brand | ICP / Tempstar / Heil |
| Contact Rating | 40 Amps |
| Poles | 1 (Single Pole) |
| Coil Voltage | 24V |
| Fit | OEM Replacement |
Compatibility
Direct-fit replacement for the ICP Tempstar Heil model WPG3604130LKC1 and ICP-family condensing units using a 1-pole 40A 24V-coil contactor. Confirm pole count, amp rating, and 24V coil against your existing part before installing.
Installation Guide
- Safety First – Disconnect power at the breaker and unit disconnect, then verify zero voltage with a multimeter on the line terminals.
- Access – Remove the condenser control-box service panel.
- Document – Photograph all line, load, and 24V coil connections before disconnecting.
- Remove – Transfer wires one at a time or photograph thoroughly, unbolt the old contactor from its bracket, and lift it out.
- Install – Mount the new contactor, land the line/load and 24V coil leads per your photos, and torque the lugs snug.
- Test – Restore power, call for cooling, and confirm the contactor pulls in cleanly with no chatter and the compressor and fan start.
Signs You Need a Replacement
- Chattering or buzzing contactor on a cooling call
- Pitted, burnt, or welded contacts
- Compressor won't start or runs after thermostat is satisfied
- Coil won't pull the contacts in despite 24V present
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