ICP ECM X-13 1/2 HP Blower Motor Control for WJA336000K000A2 | Ships Today

Overview

This genuine OEM ECM X-13 motor control module (part #1185844), rated 1/2 HP, drives the blower motor on ICP, Tempstar, and Heil model WJA336000K000A2 air handlers and furnaces. The X-13 is a constant-torque electronically commutated motor that delivers high efficiency, quiet operation, and steady airflow across changing static pressure. The control module is the brain of the motor — it interprets the 24V tap signals from the control board and commutates the windings. When the control fails, the blower may run at the wrong speed, hunt, or not run at all, even though the motor windings are good.

Specifications

Compatibility

Direct-fit replacement for the WJA336000K000A2 and other ICP-family units using a 1/2 HP ECM X-13 blower motor. Match the horsepower and program/tap configuration to your existing control before installing.

Installation Guide

1. Safety First – Disconnect power at the breaker and verify zero voltage with a multimeter; allow the ECM to fully de-energize before handling.
2. Access – Remove the blower compartment service panel and slide out the blower assembly if needed.
3. Document – Photograph the high-voltage plug, the 24V tap harness, and motor orientation.
4. Remove – Unplug the connectors, separate the control module from the motor end-shield.
5. Install – Mount the new control, reconnect the line plug and tap harness exactly as photographed.
6. Test – Restore power, run each heat/cool/fan mode, and confirm the blower ramps to the correct speed.

Signs You Need a Replacement

• Blower won't start but the motor spins freely by hand
• Motor hunts, surges, or runs at the wrong speed
• Clicking or repeated start attempts at the motor
• No airflow despite a valid blower call from the board

Shipping & Returns

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