ICP X-13 ECM Blower Motor Control 1/3 HP for WJA330000K000A1 | Ships Today
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Overview
This OEM X-13 ECM motor control module (part number 1185840) is the 1/3 HP electronically commutated blower drive for the ICP WJA330000K000A1 air handler. Unlike a standard PSC motor, the X-13 ECM holds a constant torque across multiple programmed taps, delivering quieter operation, steadier airflow, and meaningfully lower electricity use. The integrated control board reads the 24V tap signals from the furnace or air-handler control and drives the motor to the selected speed. When the module's electronics fail you'll see no blower operation, intermittent cutouts, error codes, or a motor that hums but won't spin. Replacing the X-13 control restores correct CFM and protects the rest of the system from short cycling.
Specifications
| Spec | Value |
|---|---|
| OEM Part Number | 1185840 |
| Type | X-13 ECM Motor Control / Module |
| Brand | ICP / Heil / Tempstar |
| Horsepower | 1/3 HP |
| Motor Technology | Constant-torque ECM (variable speed) |
| Control Signal | 24V tap selection |
| Fits Model | WJA330000K000A1 |
Compatibility
Direct OEM replacement for the ICP WJA330000K000A1 and matching Heil, Tempstar, and Comfortmaker air handlers using the 1/3 HP X-13 platform. Verify the HP rating and that your original motor is an X-13 (constant-torque) module before installing.
Installation Guide
- Safety First — Disconnect power at the air handler and verify zero voltage with a multimeter before touching the motor.
- Access — Remove the blower compartment service panel and slide out the blower assembly if required.
- Document — Photograph the 5-pin power harness, the 24V tap plug, and the tap positions in use.
- Remove — Unplug the harnesses, loosen the set screw, and separate the control module/motor from the blower housing.
- Install — Mount the new X-13 motor control, reconnect the power and tap harnesses, and set the same speed taps shown in your photo.
- Test — Restore power, call for blower, and confirm smooth ramp-up and correct airflow on each speed.
Signs You Need a Replacement
- Blower won't run or only hums without spinning
- Motor starts then drops out intermittently
- Weak, fluctuating, or no airflow at the registers
- Burning smell or visible scorching on the control module
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