ICP 2-Pole 30A Contactor for RGS120LFAB0AAA — 24V Coil | Ships Today
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Overview
This is the genuine OEM 2-pole, 30-amp definite-purpose contactor (part 1178074) for the ICP/Tempstar/Heil RGS120LFAB0AAA system. The contactor uses a 24-volt control coil to switch line-voltage power to the connected load, energizing the circuit whenever the thermostat or control board calls. Contactors are wear items: their silver-alloy contacts arc every time they open and close, eventually pitting, burning, or welding shut. A failed contactor is one of the most common causes of a no-start condition. Typical symptoms include a loud chattering or buzzing when the coil pulls in, contacts that stick closed so the load won't shut off, pitted or blackened contacts, or a system that won't energize at all even though 24V is present at the coil. Replacing a worn contactor restores reliable switching and prevents intermittent operation.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1178074 |
| Type | Definite-Purpose Contactor |
| Poles | 2-Pole |
| Contact Rating | 30 Amps |
| Coil Voltage | 24V |
| Brand | ICP / Tempstar / Heil |
| Fitment | OEM direct replacement |
Compatibility
Fits the ICP RGS120LFAB0AAA and related Tempstar, Heil, Comfortmaker, and ICP units calling for a 2-pole 30A contactor with a 24V coil. Match poles, amp rating, and coil voltage to your existing part before installing.
Installation Guide
- Safety First — Disconnect all power at the unit disconnect and breaker, then verify zero voltage at the contactor line terminals with a multimeter.
- Access — Remove the electrical/service panel to reach the contactor.
- Document — Photograph all line, load, and 24V coil wires before disconnecting.
- Remove — Label and disconnect the wires, unfasten the old contactor from its mount, and remove it.
- Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo, ensuring tight connections.
- Test — Restore power, initiate a call for operation, and confirm the contactor pulls in cleanly and the load energizes.
Signs You Need a Replacement
- Loud chattering or buzzing when the coil energizes
- Contacts stuck closed — the load won't shut off
- Pitted, burned, or blackened contact surfaces
- System won't start even with 24V confirmed at the coil
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