ICP Blower Motor for WAHT364B1 — 1/2 HP ECM | Ships Today
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Overview
This OEM 1/2 HP ECM blower motor (part number 1185157) is the variable-speed indoor air mover for the ICP WAHT364B1 air handler. An ECM (electronically commutated motor) uses a brushless DC design with onboard electronics to deliver precise, energy-efficient airflow across heating, cooling, and continuous-fan modes. When this motor fails you will typically see no indoor airflow, intermittent operation, the motor humming but not spinning, overheating that trips on thermal limit, or error codes from the air handler control. Because the WAHT364B1 relies on the ECM to maintain rated CFM, a weak or failed motor causes poor temperature control, frozen coils, and high head pressure on the outdoor unit. This is a genuine OEM replacement matched to the original specification.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1185157 |
| Type | ECM Blower Motor |
| Brand | ICP (Tempstar / Heil) |
| Horsepower | 1/2 HP |
| Application | Indoor Blower / Air Handler |
| Fitment | OEM Replacement |
Compatibility
Engineered as a direct OEM fit for the ICP WAHT364B1 air handler and the related Tempstar, Heil, and Comfortmaker badge-engineered units that share this chassis. Always confirm the part number stamped on your existing motor before ordering, as ECM motors are matched to a specific control profile.
Installation Guide
- Safety First — Disconnect power at the breaker and verify zero voltage with a multimeter before touching any wiring.
- Access — Remove the air handler blower compartment service panel.
- Document — Photograph all motor and control connections, including the ECM harness and ground, before disconnecting anything.
- Remove — Slide out the blower assembly, unbolt the motor mount band, separate the blower wheel from the old motor shaft, and unplug the ECM connectors.
- Install — Transfer the blower wheel to the new motor at the same depth, mount it in the housing, reinstall the assembly, and reconnect every lead exactly as photographed.
- Test — Restore power and verify the blower ramps smoothly in fan, cooling, and heating modes.
Signs You Need a Replacement
- No indoor airflow even though the system is calling for heat or cool
- Blower hums, stutters, or starts and stops intermittently
- Motor runs hot and shuts down on thermal overload
- Air handler throws a blower or communication fault code
Shipping & Returns
Ships same day before 3 PM CST. 30-day returns. 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