ICP 2-Pole 30A 24V Contactor for RGS101LFBB0AAAA — OEM 1178074 | Ships Today
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Overview
This OEM 2-pole 30-amp contactor with a 24-volt coil (part 1178074) is the primary switching relay for the ICP / Heil / Tempstar RGS101LFBB0AAAA. When the thermostat calls for cooling, the 24V coil energizes and pulls the contacts closed, sending line voltage to the compressor and condenser fan motor. Contactors are a high-wear component: the contacts pit, burn, and weld over thousands of cycles, and the coil can fail open or buzz. Symptoms of a failing contactor include a unit that won't start, a humming or chattering relay, contacts that stick closed so the condenser never shuts off, or burnt/pitted contact points. Replacing the contactor restores clean, reliable switching and protects the compressor from low-voltage damage.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1178074 |
| Type | Definite Purpose Contactor, 2-Pole |
| Brand | ICP / Heil / Tempstar / Comfortmaker |
| Contact Rating | 30 Amps |
| Coil Voltage | 24V |
| Poles | 2 |
| Fit | OEM Replacement |
| Model | RGS101LFBB0AAAA |
Compatibility
Direct-fit replacement for the ICP/Heil/Tempstar/Comfortmaker RGS101LFBB0AAAA and other units specifying a 2-pole 30A 24V-coil contactor (OEM 1178074). Confirm pole count, amp rating, and 24V coil voltage match your existing contactor before ordering.
Installation Guide
- Safety First — Disconnect power at the disconnect/breaker and verify zero voltage with a multimeter across the contactor terminals.
- Access — Remove the electrical service panel on the unit.
- Document — Photograph all line, load, and 24V coil wire connections before disconnecting.
- Remove — Transfer wires one at a time or label them, then unscrew and remove the old contactor.
- Install — Mount the new contactor and reconnect each wire to the matching terminal per your photos.
- Test — Restore power, call for cooling, and confirm the contacts pull in cleanly and the compressor and fan energize.
Signs You Need a Replacement
- Burnt, pitted, or welded contact points.
- Loud humming, buzzing, or chattering from the relay.
- Condenser won't start, or won't shut off when contacts stick closed.
- Melted housing or a coil that no longer pulls the contacts in.
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