ICP 2-Pole 30A Contactor for RGS300HDFA0AAAA — Ships Today
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Overview
These OEM definite-purpose contactors — ICP part 1171554 (2-pole, 30A) and ICP part 1183142 (3-pole, 60A) — use a 24V control coil to switch line-voltage power to the compressor and condenser fan in your RGS300HDFA0AAAA system. When the thermostat calls and the control board energizes the 24V coil, the contactor's contacts pull in and close the high-current circuit. Contactors endure constant arcing each time they open and close, so the contacts eventually pit, weld, or burn, and the coil can fail open. A failed contactor is a leading cause of a no-cooling or no-heat-pump call: the unit may buzz, chatter, fail to start the compressor, or — if contacts weld shut — run continuously. Replacing it restores clean, reliable switching and protects the compressor from low-voltage damage.
Specifications
| Spec | Value |
|---|---|
| Part Numbers | 1171554 (2-Pole), 1183142 (3-Pole) |
| Type | Definite-purpose contactor |
| Brand | ICP / Tempstar / Heil |
| Current Rating | 30A (2P) / 60A (3P) |
| Coil Voltage | 24V |
| Poles | 2 / 3 |
| Fitment | OEM direct replacement |
Compatibility
Direct OEM replacement contactors for the ICP/Tempstar/Heil RGS300HDFA0AAAA and equivalent RGS300-series units under Comfortmaker and Arcoaire. Match the pole count (2P vs. 3P), amp rating, and 24V coil voltage to the contactor you are replacing.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
- Access — Remove the unit's electrical access panel.
- Document — Photograph all line, load, and 24V coil wires before disconnecting.
- Remove — Transfer wires one at a time or label them, then unscrew the old contactor from its bracket.
- Install — Mount the new contactor, reconnect each lead to the matching terminal per your photo, and torque the lugs.
- Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly and the compressor and fan start.
Signs You Need a Replacement
- Loud buzzing or chattering when the system is called on.
- Compressor or fan won't start despite a valid call.
- Pitted, burnt, or welded contacts visible on the contactor.
- System runs nonstop because contacts are stuck closed.
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