ICP ECM X-13 1/2 HP Blower Motor Control for WJA342000KTP0A2 — Constant Torque | Ships Today
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Overview
This genuine OEM ECM X-13 motor control (OEM part #1185846) is the 1/2 HP constant-torque blower motor for the ICP / Tempstar / Heil WJA342000KTP0A2. The X-13 is an electronically commutated motor that holds a programmed torque across multiple tap-selected speeds, delivering quieter operation and meaningfully better efficiency than a standard PSC motor. It drives the indoor blower wheel that circulates conditioned air through the furnace or air handler and duct system. As an ECM, it ramps smoothly rather than starting at full speed. When the motor or its integrated control fails, airflow drops or stops entirely, which can trip the high-limit on a call for heat or freeze the evaporator coil on a call for cooling. Bad bearings produce grinding or humming, and a failed control module leaves the motor unresponsive to the thermostat.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1185846 |
| Type | ECM X-13 Constant-Torque Blower Motor / Control |
| Brand | ICP / Tempstar / Heil |
| Horsepower | 1/2 HP |
| Motor Technology | Electronically Commutated (ECM) |
| Application | Indoor Furnace / Air Handler Blower |
Compatibility
Built for the ICP / Tempstar / Heil WJA342000KTP0A2 and compatible furnaces and air handlers using a 1/2 HP ECM X-13 blower motor. Confirm horsepower, motor frame, shaft size, and rotation against your original before installing.
Installation Guide
- Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter.
- Access — Remove the blower compartment service panel and slide out the blower assembly if needed.
- Document — Photograph the line, 24V control, and tap connections, and note the blower wheel position on the shaft.
- Remove — Loosen the wheel set screw, separate the wheel, and unbolt the old motor from the blower housing.
- Install — Mount the new X-13 motor, set the wheel to the same depth, and reconnect all leads and speed taps per your photo.
- Test — Restore power, call for heating and cooling, and confirm smooth ramp-up and correct airflow.
Signs You Need a Replacement
- Little or no airflow from the supply registers
- Grinding, humming, or rattling from the blower
- Furnace short-cycling on high-limit or evaporator coil freezing
- Motor unresponsive to the thermostat / no blower on any call
Shipping & Returns
Ships same day 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