ICP 2-Pole Contactor for RGS101HDBA0AAAA — 30A & 40A 24V OEM | Ships Today
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Overview
This OEM 2-pole definite-purpose contactor (part numbers 1178074 — 30A, and 1178211 — 40A) is the switching relay for the ICP/Tempstar/Heil RGS101HDBA0AAAA system. When the thermostat calls for cooling, the 24-volt coil pulls the contacts closed and sends line voltage to the compressor and condenser fan motor. Contactors are one of the most common HVAC failure points: the contacts pit and burn from constant arcing, the coil can short or open, and insects or debris can jam the plunger. A failing contactor causes hard starts, chattering, welded-closed contacts (unit won't shut off), or a no-cool condition. Replacing it with the correct amp-rated OEM contactor restores reliable, quiet switching.
Specifications
| Spec | Value |
|---|---|
| Part Numbers | 1178074 (30A), 1178211 (40A) |
| Type | Definite-Purpose Contactor |
| Brand | ICP (Tempstar / Heil) |
| Poles | 2-Pole |
| Coil Voltage | 24V |
| Current Rating | 30A / 40A FLA |
| Fitment | OEM exact-fit replacement |
Compatibility
Fits the ICP RGS101HDBA0AAAA and related Tempstar, Heil, and Comfortmaker units built on the same platform. Match the amperage to your existing contactor — verify the rating stamped on the old part before ordering. Both 30A and 40A variants share the same 2-pole, 24V-coil footprint.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker. Verify zero voltage with a multimeter across the line terminals.
- Access — Remove the condenser or air-handler service panel to expose the control area.
- Document — Photograph every wire on the contactor before disconnecting.
- Remove — Label and disconnect the line, load, and 24V coil leads, then unscrew the old contactor.
- Install — Mount the new contactor and reconnect each wire exactly per your photo.
- Test — Restore power, call for cooling, and confirm the contacts pull in cleanly and the compressor/fan energize.
Signs You Need a Replacement
- Loud chattering or buzzing from the contactor when cooling is called
- Pitted, burned, or welded contacts visible on the part
- System won't shut off (contacts stuck closed) or won't start (open coil)
- Intermittent cooling or repeated hard starts
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