ICP ECM X-13 Fan Motor Control for WJH330000KTP0A1 — 1/3 HP Variable Speed Blower | Ships Today

Overview

This is a genuine OEM ECM X-13 motor control / blower motor (part #1185840) rated at 1/3 HP for ICP, Tempstar, and Heil systems. The X-13 is a constant-torque electronically commutated motor (ECM) that holds programmed airflow as static pressure changes, running cooler, quieter, and more efficiently than a standard PSC motor. It drives the indoor blower wheel that moves conditioned air through the ductwork. A failing X-13 control shows up as no blower operation, intermittent starting, the motor humming without turning, or blower fault codes at the furnace control board.

Specifications

Compatibility

Designed as the direct OEM replacement for the indoor blower motor control in ICP/Tempstar/Heil model WJH330000KTP0A1 and equivalent units sharing the 1185840 motor. Always verify your motor part number and program plug before installing.

Installation Guide

1. Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter.
2. Access — Remove the blower compartment service panel.
3. Document — Photograph the motor wiring, mounting orientation, and program/tap plug position before disconnecting.
4. Remove — Disconnect the power and control harness, unbolt the motor mount band, slide the motor out, and transfer the blower wheel and set screw.
5. Install — Mount the blower wheel to the new motor shaft, secure in the housing, and reconnect the harness and program plug exactly per your photos.
6. Test — Restore power and confirm the blower ramps to the correct speed on a call for heat and cool.

Signs You Need a Replacement

• Blower will not start or runs only intermittently
• Motor hums or buzzes but the wheel does not turn
• Weak or inconsistent airflow at the registers
• Furnace board throws a blower/communication fault code

Shipping & Returns

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