ICP X-13 ECM Motor Control 1/3 HP for WJA430000KTP0A1 | Ships Today

Overview

This is a genuine OEM ECM X-13 motor control module (OEM part number 1185840) rated at 1/3 HP for the ICP WJA430000KTP0A1 system. The X-13 is a constant-torque electronically commutated blower motor control that delivers quiet, energy-efficient airflow and holds steady CFM as static pressure changes. The control module reads the tap selection from the furnace or air handler board and drives the motor accordingly. When the module fails, the blower may run erratically, fail to start, surge, or stop entirely — even though the motor windings are fine. Specs: ECM X-13 constant-torque motor control, 1/3 HP.

Specifications

Compatibility

Direct-fit replacement for the ICP/Tempstar/Heil WJA430000KTP0A1 air handler/furnace blower assembly and other ICP-family units that specify ECM X-13 control 1185840. Confirm the horsepower and part number stamped on your existing motor control before ordering.

Installation Guide

1. Safety First – Disconnect power at the breaker and verify zero voltage with a multimeter before touching the blower assembly.
2. Access – Remove the blower compartment service panel.
3. Document – Photograph the control plug, tap wiring, and motor orientation before disconnecting.
4. Remove – Unplug the 5-pin control and 3-pin power connectors, then separate the control module from the motor endbell.
5. Install – Mount the new X-13 control to the motor, reseat both connectors, and confirm the tap leads match your photo.
6. Test – Restore power, call for blower operation, and verify smooth ramp-up and steady airflow on each speed tap.

Signs You Need a Replacement

• Blower won't start or only starts intermittently.
• Motor surges, hunts, or runs at the wrong speed.
• Audible clicking from the module with no motor rotation.
• No airflow despite a confirmed call for fan or heat/cool.

Shipping & Returns

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