ICP ECM X-13 Blower Motor Control for WJA342000K000A2 — 1/2 HP | Ships Today

Overview

This OEM ECM X-13 motor control module (part number 1185846) drives the 1/2 HP constant-torque blower in your ICP WJA342000K000A2 air handler or furnace. The X-13 is a programmed electronically commutated motor that holds a constant torque across a range of static pressures, delivering quieter, more efficient airflow than a traditional PSC blower. The control accepts low-voltage tap signals from the system board to select the programmed airflow profile for heating, cooling, and fan-only operation. When this module fails, the blower may not run, run only on one speed, surge or hunt, or shut down on internal overload. Because the motor and electronics are an integrated assembly, a failed control module typically means the blower stops moving air entirely — leading to no heat, no cool, or a system that trips on high limit. Replacing with the correct OEM control preserves the factory airflow programming for the cabinet.

Specifications

Compatibility

This X-13 control is the OEM blower motor module for the ICP WJA342000K000A2 and the matching 1/2 HP blower assemblies used across equivalent Tempstar, Heil, and Comfortmaker air handlers and furnaces. Verify the part number 1185846 and the motor horsepower stamped on the existing unit before installing.

Installation Guide

1. Safety First — Disconnect power at the unit disconnect and breaker, then verify zero voltage with a multimeter before touching the blower compartment.
2. Access — Remove the blower access panel and slide out the blower assembly if needed.
3. Document — Photograph the high-voltage harness and the low-voltage control plug positions before disconnecting.
4. Remove — Unplug the power and control connectors, then separate the failed control/motor from the blower housing.
5. Install — Mount the new X-13 control, reconnect both connectors exactly per your photo, and reseat the blower assembly.
6. Test — Restore power, call for heat and cool, and confirm the blower ramps to the programmed speed on each mode.

Signs You Need a Replacement

• Blower will not start or only runs on one speed.
• Airflow surges, hunts, or cuts in and out.
• System trips on high limit from lack of airflow.
• Buzzing or burnt-electronics smell from the motor control.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.