What HP motor do I need for my ICP unit?

The correct replacement for ICP model WPH4364000RKB1 — 1/2 HP & 1/5 HP | 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 WPH4364000RKB1 — 1/2 HP & 1/5 HP | 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 & Condenser Fan Motor Set for WPH4364000RKB1 — 1/2 HP & 1/5 HP | Ships Today

Name: ICP Blower & Condenser Fan Motor Set for WPH4364000RKB1 — 1/2 HP & 1/5 HP | Ships Today
Brand: ICP
SKU: 1188129-GEN
Price: 175.00 USD
Availability: InStock

SKU: 1188129-GEN Brand: ICP

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Overview

This listing covers the genuine OEM motors for the ICP/Tempstar/Heil WPH4364000RKB1 packaged heat pump: the 1/2 HP blower motor (P/N 1188129) that moves conditioned air through the indoor section, and the 1/5 HP condenser fan motor (P/N 1186359, frame 810) that pulls air across the outdoor coil for heat rejection. Both are critical to airflow and capacity. A failing blower motor causes weak airflow, overheating, and limit-switch trips, while a failing condenser fan motor leads to high head pressure, compressor overheating, and loss of cooling or heat-pump efficiency. Replacing a worn or seized motor restores rated airflow and protects the compressor from heat-related failure.

Specifications

Spec	Value
Blower Motor P/N	1188129 — 1/2 HP
Condenser Fan P/N	1186359 — 1/5 HP (810 frame)
Type	Blower Motor + Condenser Fan Motor
Brand	ICP / Tempstar / Heil
Application	Packaged Heat Pump

Compatibility

Factory replacements for the ICP/Tempstar/Heil WPH4364000RKB1. These motors are shared across many ICP-family packaged units of similar tonnage — verify horsepower, voltage, rotation, and shaft size against your existing motors before installing.

Installation Guide

Safety First — Disconnect power at the breaker and disconnect, then verify zero voltage with a multimeter.
Access — Remove the service and blower/fan access panels.
Document — Photograph all motor wiring, capacitor leads, and the fan-blade/blower-wheel position on the shaft.
Remove — Loosen the set screw, slide the wheel/blade off, unbolt the motor from its mount, and disconnect leads.
Install — Mount the new motor, transfer the wheel/blade to the same shaft depth, and reconnect wiring per your photo.
Test — Restore power and confirm proper rotation, smooth operation, and full airflow.

Signs You Need a Replacement

Motor hums but will not start, or starts only after a spin.
Hot, noisy, or grinding bearings.
Weak indoor airflow or repeated high-pressure/limit trips.
Outdoor fan not turning while the compressor runs.

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 & Condenser Fan Motor...

$175.00

Frequently Asked Questions

Does this Fan Motor fit my ICP WPH4364000RKB1 — 1/2 HP & 1/5 HP | Ships Today?

Yes. This is the factory-specified OEM fan motor for the ICP WPH4364000RKB1 — 1/2 HP & 1/5 HP | 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 WPH4364000RKB1 — 1/2 HP & 1/5 HP | 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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