What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPH4304000RKA1 — 24V Coil with Shunt | 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 WPH4304000RKA1 — 24V Coil with Shunt | 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 Single-Pole 30A Contactor for WPH4304000RKA1 — 24V Coil with Shunt | Ships Today

Name: ICP Single-Pole 30A Contactor for WPH4304000RKA1 — 24V Coil with Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 42.84 USD
Availability: InStock

SKU: 1172472 Brand: ICP

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This OEM single-pole definite-purpose contactor (part #1172472) is the primary switching relay for the outdoor unit on the ICP/Tempstar/Heil WPH4304000RKA1 heat pump. Rated at 30 amps with a 24-volt control coil and an integrated shunt, the contactor energizes the compressor and condenser fan motor whenever the thermostat calls for cooling or heating. The coil pulls in a set of power contacts that pass line voltage to the outdoor components. Over thousands of cycles the contacts pit, burn, and weld — leading to a unit that won't start, won't shut off, or chatters loudly. A failing contactor is one of the most common service-call culprits in condensing units and heat pumps.

Specifications

Spec	Value
OEM Part Number	1172472
Type	Definite-Purpose Contactor
Brand	ICP / Tempstar / Heil
Poles	1 (Single-Pole)
Contact Rating	30 Amps
Coil Voltage	24 VAC
Features	Integrated Shunt

Compatibility

Direct OEM fit for the ICP/Tempstar/Heil WPH4304000RKA1 heat pump. Also serves as a correct-rating replacement across many ICP-family single-pole 30A/24V condensing units and heat pumps. Always confirm pole count, amp rating, and coil voltage against the contactor you are removing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker. Verify zero voltage with a multimeter across the line terminals.
Access — Remove the condensing unit's service panel.
Document — Photograph all line, load, and 24V coil wires before disconnecting.
Remove — Transfer wires one at a time, or label them, then unscrew the old contactor from the bracket.
Install — Mount the new contactor, reconnect every wire exactly per your photo, and confirm the 24V coil leads are landed.
Test — Restore power and call for cooling; verify the contactor pulls in cleanly and the compressor and fan energize.

Signs You Need a Replacement

Outdoor unit hums or buzzes but won't start
Burned, pitted, or welded contacts visible on the old part
Unit fails to shut off after the call ends (stuck contacts)
Loud chattering or clicking when the thermostat calls

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 Single-Pole 30A Contactor fo...

$42.84

Frequently Asked Questions

Does this Contactor fit my ICP WPH4304000RKA1 — 24V Coil with Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPH4304000RKA1 — 24V Coil with Shunt | 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 WPH4304000RKA1 — 24V Coil with Shunt | 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.

Menu