What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPG4304040RKB1 — 24V w/ 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 WPG4304040RKB1 — 24V w/ 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 1-Pole 30A Contactor for WPG4304040RKB1 — 24V w/ Shunt | Ships Today

Name: ICP 1-Pole 30A Contactor for WPG4304040RKB1 — 24V w/ Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 37.64 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This is a genuine OEM 1-pole 30 amp contactor with shunt (part number 1172472) for the ICP/Tempstar/Heil WPG4304040RKB1 packaged unit. The contactor is an electrically controlled switch: when the 24V coil is energized by a cooling call, it closes the line-voltage contacts that feed the compressor and condenser fan. The integrated shunt maintains power to the crankcase heater or controls when the contacts are open. Contactors wear out from millions of switching cycles — symptoms include pitted or welded contacts, a chattering or humming coil, the outdoor unit failing to start, or the compressor running continuously because the contacts will not open.

Specifications

Spec	Value
Part Number	1172472
Type	Definite-Purpose Contactor with Shunt
Brand	ICP / Tempstar / Heil
Poles	1-Pole
Contact Rating	30 A
Coil Voltage	24 V
Fitment	OEM Direct Replacement

Compatibility

Engineered as a direct OEM replacement for the ICP/Tempstar/Heil WPG4304040RKB1 model. Verify the 1-pole configuration, 30A rating, 24V coil, and part number 1172472 before installing.

Installation Guide

Safety First — Disconnect power at the breaker and unit disconnect; verify zero voltage with a multimeter.
Access — Remove the control compartment service panel.
Document — Photograph every line, load, coil, and shunt connection before disconnecting.
Remove — Disconnect the wiring, unscrew the old contactor from its mount, and discard.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test — Restore power, place a cooling call, and confirm the contacts pull in and the unit starts.

Signs You Need a Replacement

Outdoor unit won't start on a cooling call
Pitted, burned, or welded contacts
Buzzing or chattering contactor coil
Compressor runs continuously and won't shut off

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 30A Contactor for WPG...

$37.64

Frequently Asked Questions

Does this Contactor fit my ICP WPG4304040RKB1 — 24V w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPG4304040RKB1 — 24V w/ 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 WPG4304040RKB1 — 24V w/ 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.

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