ICP ECM X-13 Motor Control Module 1/2 HP for WJA336000KTP0A2 — Ships Today

Overview

This is the genuine OEM ECM X-13 motor control module (part #1185844), the 1/2 HP constant-torque electronic control that drives the indoor blower motor on the ICP / Tempstar / Heil WJA336000KTP0A2 system. The X-13 platform uses programmed torque taps to maintain efficient, quiet airflow across multiple speed stages without the cost of a fully variable-speed module. The control module is the electronics package mounted to the motor; it interprets the low-voltage stage inputs from the furnace control board and modulates the brushless DC motor accordingly. When the module fails, the blower may not start, may run only on one speed, or may short-cycle on thermal overload.

Specifications

Compatibility

Direct OEM replacement for the blower motor control on the ICP/Tempstar/Heil WJA336000KTP0A2. The 1/2 HP X-13 module is shared across numerous ICP-family furnaces and air handlers of comparable airflow rating. Match part number 1185844 and confirm the motor end-bell mating profile before installing.

Installation Guide

1. Safety First — Disconnect power at the furnace/air handler disconnect and breaker, then verify zero voltage with a multimeter before touching the motor.
2. Access — Remove the blower compartment service panel and slide out the blower assembly if needed.
3. Document — Photograph the 5-pin motor connector, the 16-pin control plug, and each speed-tap wire before disconnecting.
4. Remove — Unplug the power and control harnesses, then separate the control module from the motor end bell.
5. Install — Seat the new module on the motor, reconnect both harnesses per your photo, and confirm the connectors are fully latched.
6. Test — Restore power, command each blower stage, and verify smooth ramp-up with no fault codes.

Signs You Need a Replacement

• Blower will not start while the rest of the system powers up normally.
• Motor runs on only one speed or ignores stage commands.
• Intermittent operation or shutdown on thermal overload.
• Burnt-electronics smell or visible scorching on the module board.

Shipping & Returns

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