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This OEM ECM X-13 motor control (part number 1185842) is the 1/2 HP variable-speed fan motor engineered for the ICP/Tempstar/Heil WPA4244000RKA1 heat pump unit. The X-13 is a constant-torque electronically commutated motor (ECM) that delivers higher efficiency and quieter operation than a standard PSC motor. When this motor fails, the outdoor fan stops turning, the unit overheats on a high-pressure trip, and the system loses its ability to cool or pump heat. Replacing it with the correct OEM-rated 1/2 HP control restores proper airflow and protects the compressor.
| Spec | Value |
|---|---|
| Part Number | 1185842 |
| Type | ECM X-13 Motor Control |
| Brand | ICP / Tempstar / Heil |
| Horsepower | 1/2 HP |
| Motor Technology | Constant-torque ECM |
| Application | Condenser / heat pump fan |
Designed as the direct OEM replacement for the ICP/Tempstar/Heil model WPA4244000RKA1. The X-13 platform is shared across many ICP-family condensing units and heat pumps; always confirm the printed part number 1185842 and the 1/2 HP rating against your existing motor before ordering.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.