ICP 2-Pole Contactor for RHH120H0EA0AAAA — 30A/40A 24V Coil | Ships Today
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Overview
This is a genuine OEM 2-pole definite-purpose contactor for the ICP / Heil / Tempstar RHH120H0EA0AAAA heat pump. The contactor is the electrically operated switch that energizes the compressor and condenser fan motor whenever the thermostat calls for cooling or heating. When the 24-volt coil is energized, the contactor pulls its contacts closed and sends line voltage to the outdoor unit. This part is offered in 30-amp (OEM 1178074) and 40-amp (OEM 1178211) ratings, both with a 24V control coil. Pitted, burned, or chattering contacts are one of the most common causes of an outdoor unit that hums but won't start, trips the breaker, or runs intermittently.
Specifications
| Spec | Value |
|---|---|
| OEM Part Numbers | 1178074 (30A), 1178211 (40A) |
| Type | Definite Purpose Contactor |
| Poles | 2-Pole |
| Coil Voltage | 24V |
| Contact Rating | 30A / 40A FLA |
| Brand | ICP / Heil / Tempstar |
| Fits Model | RHH120H0EA0AAAA |
Compatibility
Designed as a direct-fit replacement for the ICP-family RHH120H0EA0AAAA heat pump and shared platforms sold under the Heil, Tempstar, and Comfortmaker labels. Confirm your existing contactor's pole count, coil voltage (24V), and amp rating before ordering.
Installation Guide
- Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter across the line terminals.
- Access — Remove the condensing unit's electrical access panel.
- Document — Photograph all line, load, and coil wiring before disconnecting anything.
- Remove — Label and disconnect the wires, then unbolt the old contactor from its bracket.
- Install — Mount the new contactor, reconnect line (L1/L2), load, and the two 24V coil leads exactly per your photo.
- Test — Restore power and call for cooling; confirm the contactor pulls in cleanly and the compressor and fan start.
Signs You Need a Replacement
- Outdoor unit hums or buzzes but the compressor won't start.
- Visible pitting, melting, or carbon burning on the contacts.
- Contacts that stick closed so the unit won't shut off.
- Clicking or chattering at the contactor when the thermostat calls.
Shipping & Returns
Ships same day on orders placed before 3 PM CST. 30-day returns on unused parts. 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