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This is the genuine OEM dual run capacitor for the ICP / Tempstar / Heil WJA360000K000A2 condensing unit (OEM part 1177750, CAPACITOR RN RD 370V 70+10). A dual run capacitor provides the steady phase shift that both the compressor and the condenser fan motor need to run efficiently. The 70 MFD section serves the compressor (HERM terminal) and the 10 MFD section serves the condenser fan motor (FAN terminal), with the common (C) terminal tying into the line. Rated at 370V in a round case, it delivers reliable torque assistance on every run cycle. A weak or failed capacitor is one of the most common causes of a no-cool call: the compressor may hum but not start, the fan may stall, or the unit may trip on overload. Heat, age, and voltage surges all degrade capacitance over time.
| Spec | Value |
|---|---|
| Part Number | 1177750 |
| Type | Dual run capacitor (round) |
| Brand | ICP (Tempstar / Heil) |
| Capacitance | 70 + 10 MFD |
| Voltage | 370V |
| Terminals | HERM / FAN / C |
| Fit | OEM direct replacement |
Direct OEM-fit replacement for the ICP WJA360000K000A2 condensing unit and matching ICP-family builds (Tempstar, Heil, Comfortmaker, Arcoaire) that specify a 70+10 MFD 370V dual run capacitor. Confirm the MFD values and voltage stamped on your existing capacitor before installing. A 370V capacitor may be used in place of a 440V only if the OEM spec calls for 370V.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.