What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPH4484000RKB1 — 1-Pole 40A 24V | 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 WPH4484000RKB1 — 1-Pole 40A 24V | Ships Today.

My AC clicks but the compressor does not turn on. What is wrong?

Clicking from the outdoor unit without the compressor starting usually means a worn contactor. The contactor is the relay that sends power to the compressor. When its contacts are pitted or worn, it clicks but cannot establish a solid electrical connection. Other symptoms: visible pitting or burn marks on the contactor face, AC works intermittently, or buzzing from the contactor.

ICP

ICP Contactor for WPH4484000RKB1 — 1-Pole 40A 24V | Ships Today

Name: ICP Contactor for WPH4484000RKB1 — 1-Pole 40A 24V | Ships Today
Brand: ICP
SKU: 1173690
Price: 32.44 USD
Availability: InStock

SKU: 1173690 Brand: ICP

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Overview

This is a genuine OEM 1-pole definite purpose contactor (part number 1173690) for the ICP / Tempstar / Heil WPH4484000RKB1 heat pump. The contactor is the electrically operated switch that powers the outdoor unit's compressor and condenser fan motor. When the 24V control signal energizes the coil, the contacts close and send line voltage to the condenser. Rated for 40 amps with a 24-volt coil, it handles the inrush current of the compressor on every cooling and heating cycle. Pitted, welded, or chattering contacts are one of the most common no-cool failures in the field — replacing this part restores reliable startup and prevents the buzzing and arcing that burn out compressor windings.

Specifications

Spec	Value
Part Number	1173690
Type	Definite Purpose Contactor, 1-Pole
Brand	ICP / Tempstar / Heil
Contact Rating	40 Amps
Coil Voltage	24V
Poles	1
Fitment	OEM

Compatibility

Engineered as the factory replacement for the ICP WPH4484000RKB1 heat pump condensing unit. ICP manufactures under several brand names — this contactor also services equivalent Tempstar, Heil, Comfortmaker, and Arcoaire outdoor units that originally shipped with part 1173690. Always confirm the existing contactor's amp rating and coil voltage against the specs above before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage at the contactor terminals with a multimeter.
Access — Remove the service panel on the condensing unit to expose the electrical compartment.
Document — Photograph all line, load, and 24V coil wires before disconnecting anything.
Remove — Note wire positions, disconnect the spade terminals, then unscrew the old contactor from its mounting bracket.
Install — Mount the new contactor, reconnect each wire to the matching terminal per your photo.
Test — Restore power, call for cooling, and confirm the contacts pull in cleanly and the compressor and fan start.

Signs You Need a Replacement

Outdoor unit hums or buzzes but the compressor and fan won't start.
Visibly burned, pitted, or melted contact points.
Loud chattering or rapid clicking when the system calls for cooling.
Contacts stick closed and the condenser runs continuously.

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

ICP Contactor for WPH4484000RKB1...

$32.44

Frequently Asked Questions

Does this Contactor fit my ICP WPH4484000RKB1 — 1-Pole 40A 24V | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPH4484000RKB1 — 1-Pole 40A 24V | 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 contactor on my ICP WPH4484000RKB1 — 1-Pole 40A 24V | Ships Today?

Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Open condensing unit panel. Step 3: Photograph ALL wiring on the contactor. Step 4: Label each wire with tape. Step 5: Disconnect wires and remove old contactor. Step 6: Mount new contactor, reconnect wires matching your photo. Step 7: Restore power and test.

My AC clicks but the compressor won’t turn on. What’s wrong?

Clicking from the outdoor unit without the compressor starting = worn contactor. The contactor sends power to the compressor. When its contacts are pitted, it clicks but can’t make solid contact. Look for: visible pitting/burn marks on the contactor face, intermittent operation, or buzzing.

Is this contactor 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 contactor?

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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