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This OEM 2-pole 30-amp definite-purpose contactor (ICP part 1178074) is the main switching relay for the ICP / Heil / Tempstar RHH036S0XA0AAAA condensing unit. Its 24V coil pulls in two sets of power contacts that feed the compressor and condenser fan whenever the thermostat calls. Over thousands of cycles the contacts pit, weld, or burn, and the coil can open — producing a humming unit that will not start, a chattering contactor, or a compressor that runs without cooling. Replacing the contactor is one of the most common and effective fixes for a no-cool condenser.
| Spec | Value |
|---|---|
| Part Number | 1178074 |
| Type | Definite-Purpose Contactor, 2-Pole |
| Brand | ICP (Heil / Tempstar / Comfortmaker) |
| Contact Rating | 30 Amp |
| Coil Voltage | 24V |
| Poles | 2 |
| Fit | OEM direct replacement |
Designed for the ICP / Heil / Tempstar RHH036S0XA0AAAA and other ICP-family condensing units specifying a 2-pole 30A 24V contactor. Confirm pole count and coil voltage against your existing part.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.