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This OEM 2-pole, 30-amp contactor with a 24-volt coil (part #1178074) is the high-voltage switch for the ICP, Heil, and Tempstar RGS101LFCA0AAA. When the thermostat or control board energizes the 24V coil, the contactor pulls in and closes both poles to power the compressor and condenser fan motor. Contactors wear out from millions of switching cycles — pitted or burned contacts, a chattering or buzzing coil, and welded contacts that won’t release are the classic failure modes. Symptoms include the outdoor unit not starting, humming without engaging, or the compressor running continuously because the contacts have welded shut.
| Spec | Value |
|---|---|
| Part Number | 1178074 |
| Type | Definite Purpose Contactor |
| Poles | 2-Pole |
| Contact Rating | 30A |
| Coil Voltage | 24V |
| Brand | ICP / Heil / Tempstar |
| Fits Model | RGS101LFCA0AAA |
Fits the ICP/Heil/Tempstar RGS101LFCA0AAA and platform models that specify a 2-pole 30A 24V contactor (part 1178074). Confirm pole count, amp rating, and coil voltage before ordering.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.