ICP X-13 ECM Blower Motor 1/3 HP for WJH424000KTP0A1 — OEM 1185839 | Ships Today
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
Overview
This is a genuine OEM X-13 ECM blower motor control (part number 1185839) rated at 1/3 HP for the ICP / Tempstar / Heil WJH424000KTP0A1 system. The X-13 is a constant-torque electronically commutated motor (ECM) that drives the indoor blower wheel, moving conditioned air through the duct system. Unlike a standard PSC motor, the X-13 maintains a programmed torque across changing static pressure, delivering quieter operation and higher efficiency. Common failure symptoms include the blower not starting, intermittent operation, buzzing or humming without rotation, overheating and thermal shutdown, or error/fault codes on the furnace control board. A failed ECM motor will leave the system unable to deliver heating or cooling even when the compressor and burners are working.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1185839 |
| Type | X-13 ECM Constant-Torque Blower Motor |
| Brand | ICP / Tempstar / Heil |
| Horsepower | 1/3 HP |
| Voltage | 120/240V |
| Application | Indoor Furnace / Air Handler Blower |
| Fit | OEM Direct Replacement |
Compatibility
Engineered as a direct-fit OEM replacement for the ICP / Tempstar / Heil model WJH424000KTP0A1 and related Comfortmaker-family air handlers and gas furnaces using the 1185839 X-13 ECM motor module. Always confirm the part number on your existing motor label before ordering.
Installation Guide
- Safety First — Disconnect power at the breaker and verify zero voltage at the unit with a multimeter before touching any wiring.
- Access — Remove the blower compartment service panel to expose the motor and blower assembly.
- Document — Photograph all motor and control connections, including the 5-pin and high-voltage plugs, before disconnecting anything.
- Remove — Unplug the motor harness, loosen the blower wheel set screw, remove the motor mount bolts, and slide the old motor out of the housing.
- Install — Transfer the blower wheel to the new motor shaft, mount the motor, reconnect the harness exactly per your photos, and torque the set screw on the shaft flat.
- Test — Restore power, call for blower operation, and confirm smooth ramp-up, correct airflow, and no fault codes.
Signs You Need a Replacement
- Blower fails to start or starts only intermittently.
- Humming or buzzing from the motor with no rotation.
- Motor runs hot and trips on thermal overload.
- Furnace control board reports a blower/motor fault code.
Shipping & Returns
Ships same day on orders placed before 3 PM CST. 30-day returns on unused parts. Backed by the National HVAC Parts fitment guarantee.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days