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This OEM 2-pole, 30-amp contactor is the main switching relay for the ICP/Tempstar/Heil RHS090H0CB0AAA heat pump. Its 24V coil is energized by the thermostat through the control transformer; when it pulls in, the contacts close and route line voltage to the compressor and condenser fan motor. Over thousands of cycles the silver contacts pit, burn, and weld, while the coil can open or overheat. A failing contactor causes hard starts, chattering, buzzing, intermittent cooling, or a unit that will not start at all. Replacing a worn contactor restores clean, reliable switching and protects the compressor from low-voltage and single-phasing damage.
| Spec | Value |
|---|---|
| Primary OEM Part | 1178074 |
| Type | Definite Purpose Contactor, 2-Pole |
| Brand | ICP / Tempstar / Heil |
| Contact Rating | 30A |
| Poles | 2 |
| Coil Voltage | 24V |
| Fit | OEM Direct Replacement |
Direct-fit replacement for the ICP/Tempstar/Heil RHS090H0CB0AAA heat pump. For higher-load builds in this series a 40A 2-pole equivalent (OEM 1178211) is also used — confirm the amp rating and coil voltage stamped on your existing contactor before ordering.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.