What HP motor do I need for my ICP unit?

The correct replacement for ICP model WPA4304000RKB1 — Direct OEM Fit | Ships Today is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your ICP equipment which lists the model number WPA4304000RKB1 — Direct OEM Fit | Ships Today.

My AC fan is not spinning. What part do I need?

A fan that does not spin, spins slowly, or makes grinding or squealing noises needs a new motor. Grinding means the bearings have failed. Squealing means the bearings are dry. No spin with a humming sound means the capacitor may be the issue. Check the motor capacitor before replacing the entire motor.

ICP

ICP Blower Motor 1/2 HP for WPA4304000RKB1 — Direct OEM Fit | Ships Today

Name: ICP Blower Motor 1/2 HP for WPA4304000RKB1 — Direct OEM Fit | Ships Today
Brand: ICP
SKU: 1188128-GEN
Price: 189.00 USD
Availability: InStock

SKU: 1188128-GEN Brand: ICP

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Overview

This genuine OEM 1/2 HP blower motor (OEM part #1188128) is the air-moving motor for the ICP/Tempstar/Heil WPA4304000RKB1 system. The blower motor drives the indoor blower wheel that circulates conditioned air through the supply ductwork. A failing blower motor is a frequent cause of weak airflow, no airflow, overheating limit trips, and frozen evaporator coils. This motor delivers the correct horsepower, rotation, and mounting to restore full-rated airflow without guesswork. Bearings, windings, and shaft are built to OEM tolerances for quiet, long-lived operation.

Specifications

Spec	Value
Part Number	1188128
Type	Blower Motor
Brand	ICP / Tempstar / Heil
Horsepower	1/2 HP
Application	Indoor blower / air handler

Compatibility

Direct OEM replacement blower motor for the ICP/Tempstar/Heil WPA4304000RKB1 and related air-handling assemblies that originally shipped with the 1/2 HP motor. Confirm horsepower, voltage, rotation, and shaft size against your existing motor before installing.

Installation Guide

Safety First — Disconnect power at the furnace/air handler and breaker; verify zero voltage with a multimeter.
Access — Remove the blower compartment service panel and slide out the blower assembly.
Document — Photograph all motor wiring, capacitor leads, and blower-wheel position on the shaft.
Remove — Loosen the blower-wheel set screw, pull the wheel, and unbolt the old motor from the housing.
Install — Mount the new motor, reinstall the blower wheel at the same depth, and reconnect wiring per your photo.
Test — Restore power, run the blower, and verify smooth, full-speed airflow with no vibration.

Signs You Need a Replacement

No airflow or noticeably weak airflow from the registers
Loud humming, grinding, or squealing from the blower compartment
Motor runs hot, smells burnt, or trips on overload
Furnace short-cycles on the high-limit due to insufficient airflow

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

ICP Blower Motor 1/2 HP for WPA4...

$189.00

Frequently Asked Questions

Does this Fan Motor fit my ICP WPA4304000RKB1 — Direct OEM Fit | Ships Today?

Yes. This is the factory-specified OEM fan motor for the ICP WPA4304000RKB1 — Direct OEM Fit | Ships Today. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the fan motor on my ICP WPA4304000RKB1 — Direct OEM Fit | Ships Today?

Difficulty: Medium-Hard (1–2 hrs)
Step 1: Turn off breaker. Step 2: Note motor specs: HP, RPM, voltage, rotation direction. Step 3: Remove old motor from mounting. Step 4: Transfer fan blade to new motor. Step 5: Mount new motor, reconnect wiring. Step 6: Restore power, verify rotation direction.

My AC fan isn’t spinning. What part do I need?

Fan not spinning, spinning slowly, or making grinding/squealing noises = motor failure. Grinding = bearings failed. Squealing = bearings dry. No spin + hum = check the motor capacitor first before replacing the entire motor.

Is this fan motor compatible with Bryant or Payne too?

Many ICP parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my ICP fan motor?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

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