ICP X-13 ECM Fan Motor Control for WJA336000KTP0A1 — 1/2 HP | Ships Today
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Overview
This is a genuine OEM X-13 ECM fan motor control (part number 1185844) for the ICP/Heil/Tempstar model WJA336000KTP0A1. The X-13 is a 1/2 HP electronically commutated (ECM) constant-torque blower motor that drives the indoor air handler or furnace blower. Unlike older PSC motors, the X-13 uses a brushless DC design for quieter operation, lower power draw, and stable airflow against changing static pressure. Common failure symptoms include the blower failing to start, intermittent operation, unusual humming or buzzing, overheating, or the motor spinning up then shutting down on its internal protection. A failed ECM module will often leave the blower completely dead while the rest of the control board still powers up.
Specifications
| Spec | Value |
|---|---|
| OEM Part Number | 1185844 |
| Type | X-13 ECM Motor Control |
| Brand | ICP / Heil / Tempstar |
| Horsepower | 1/2 HP |
| Motor Technology | Constant-Torque ECM (brushless DC) |
| Application | Indoor blower / air handler |
| Fitment | OEM Replacement |
Compatibility
Designed as a direct OEM replacement for ICP, Heil, and Tempstar model WJA336000KTP0A1. Because ICP shares platforms across its family brands, this X-13 module also appears in many comparable Comfortmaker and Day & Night air handlers using the same blower assembly. Always confirm the OEM part number 1185844 against your old unit before installing.
Installation Guide
- Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter before touching any wiring.
- Access — Remove the blower compartment service panel.
- Document — Photograph every wire and connector position before disconnecting anything.
- Remove — Unplug the 5-pin control and power harnesses, then unbolt the ECM module from the motor end-bell.
- Install — Mount the new X-13 control, reseat the bolts, and reconnect each harness exactly per your photo.
- Test — Restore power, call for fan, and confirm smooth ramp-up and steady airflow.
Signs You Need a Replacement
- Blower does not start even though the thermostat and control board are calling for fan.
- Motor hums, buzzes, or briefly spins then stops.
- Intermittent airflow or repeated overheating shutdowns.
- Burnt-electronics smell or visible scorching on the control module.
Shipping & Returns
Ships same day on orders placed before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days