ICP ECM X-13 Blower Motor Control for WAHT424B1 — 1/2 HP | Ships Today
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Overview
This is the OEM ECM X-13 motor control module rated 1/2 HP (part number 1185291) for the ICP WAHT424B1 air handler. The X-13 is a constant-torque electronically commutated motor (ECM) that drives the blower at programmed torque levels, delivering quieter, more efficient airflow than a standard PSC motor. The control module is the electronics package that powers and commutates the motor windings. When the X-13 control fails, the blower may not spin, run at the wrong speed, surge, or shut down intermittently — and you may hear clicking or smell hot electronics. Bearing drag, a burned control board, or a stalled rotor are common failure modes.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1185291 |
| Type | ECM X-13 Motor Control (Constant Torque) |
| Brand | ICP (Tempstar / Heil) |
| Horsepower | 1/2 HP |
| Motor Technology | Electronically Commutated (ECM) |
| Application | Air Handler Blower |
Compatibility
Engineered as a direct OEM fit for the ICP WAHT424B1 air handler and other Tempstar, Heil, and Comfortmaker fan coil units that use the 1/2 HP X-13 motor part 1185291. Match the horsepower and part number to your existing motor before ordering.
Installation Guide
- Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter; ECM modules hold a charge, so wait several minutes before handling.
- Access — Remove the air handler service panel and slide out the blower assembly.
- Document — Photograph the motor harness, power connector, and blower wheel position before disconnecting.
- Remove — Unplug the 5-pin control and power connectors, loosen the blower wheel set screw, and separate the motor from the housing.
- Install — Mount the new X-13 motor, reinstall the blower wheel at the correct depth, and reconnect both connectors per your photo.
- Test — Restore power, run a blower call, and confirm smooth, correct-speed operation with no surging.
Signs You Need a Replacement
- Blower will not start or only hums without spinning
- Motor runs at the wrong speed, surges, or cycles on and off
- Clicking, grinding, or a hot electronics odor from the blower
- Intermittent airflow or repeated blower fault lockouts
Shipping & Returns
Ships same day before 3 PM CST. 30-day returns. 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