What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPH4604000RKA1 — 24V Coil | 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 WPH4604000RKA1 — 24V Coil | 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 1-Pole 40A Contactor for WPH4604000RKA1 — 24V Coil | Ships Today

Name: ICP 1-Pole 40A Contactor for WPH4604000RKA1 — 24V Coil | Ships Today
Brand: ICP
SKU: WPH4604000RKA1
Price: 35.04 USD
Availability: InStock

SKU: WPH4604000RKA1 Brand: ICP

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Overview

This genuine OEM 1-pole, 40 amp definite purpose contactor (Part #1173690) with a 24-volt coil is the main switching relay for the ICP / Tempstar / Heil WPH4604000RKA1 heat pump. When the thermostat calls for cooling or heating, the 24V control circuit energizes the contactor coil, which pulls the contacts closed and sends line voltage to the compressor and condenser fan motor. Contactors are one of the most common HVAC failure points: contacts pit, burn, and weld from arcing over thousands of cycles, while the coil can lose its magnetic pull. A failing contactor causes hard starts, chattering, buzzing, intermittent cooling, or a unit that won't run at all. Replacing it restores reliable, clean switching and protects your compressor.

Specifications

Spec	Value
Part Number	1173690
Type	Definite Purpose Contactor
Brand	ICP (Tempstar / Heil)
Poles	1-Pole
Resistive Rating	40 Amps
Coil Voltage	24 VAC

Compatibility

Built for the ICP WPH4604000RKA1 heat pump condenser and compatible across many ICP-family units (Tempstar, Heil, Comfortmaker) that use a single-pole 40A contactor with a 24V coil. Confirm pole count, amperage, and coil voltage against your existing part before installing.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage at the contactor terminals with a multimeter.
Access — Remove the condenser service panel to reach the control box.
Document — Photograph every wire and terminal position before disconnecting anything.
Remove — Move wires one at a time to the new contactor, or label them, then unscrew the old contactor from its bracket.
Install — Mount the new contactor, reconnect line, load, and 24V coil wires exactly per your photo.
Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly and the compressor and fan start.

Signs You Need a Replacement

Buzzing, humming, or chattering at the contactor
Burned, pitted, or welded contacts
Compressor won't start or runs intermittently
Visible arcing or melted housing

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 1-Pole 40A Contactor for WPH...

$35.04

Frequently Asked Questions

Does this Contactor fit my ICP WPH4604000RKA1 — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPH4604000RKA1 — 24V Coil | 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 WPH4604000RKA1 — 24V Coil | 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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