What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPA4424000RKB1 — 1-Pole 30A 24V Coil 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 WPA4424000RKB1 — 1-Pole 30A 24V Coil 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 Contactor for WPA4424000RKB1 — 1-Pole 30A 24V Coil w/ Shunt | Ships Today

Name: ICP Contactor for WPA4424000RKB1 — 1-Pole 30A 24V Coil w/ Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 41.60 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This OEM 1-pole definite purpose contactor (part number 1172472) is the switching relay that energizes the compressor and condenser fan motor in your ICP WPA4424000RKB1 condensing unit. Rated for 30 amps with a 24-volt coil and an integrated shunt, it closes the high-voltage circuit whenever the thermostat calls for cooling. When the coil energizes, the contacts pull in and pass line voltage to the outdoor components. A failed contactor is one of the most common no-cool service calls: pitted, welded, or chattering contacts prevent the system from starting or cause it to run continuously even after the call for cooling ends.

Specifications

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

Compatibility

Engineered as a direct-fit replacement for the ICP/Heil/Tempstar/Comfortmaker WPA4424000RKB1 heat pump and closely related condensing units in the same family. Always confirm your existing contactor's amp rating, pole count, and coil voltage match before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage at the contactor terminals with a multimeter.
Access — Remove the condenser service panel to expose the control area.
Document — Photograph all line, load, and coil wiring before disconnecting anything.
Remove — Label and disconnect the wires, then unscrew the old contactor from the mounting bracket.
Install — Mount the new contactor and reconnect each wire exactly per your photo, matching line/load and 24V coil terminals.
Test — Restore power, call for cooling, and confirm the contacts pull in and the compressor and fan start.

Signs You Need a Replacement

System won't start or only starts intermittently when cooling is called.
Loud buzzing, humming, or chattering from the outdoor unit.
Visibly pitted, burned, or welded-together contacts.
Outdoor unit keeps running after the thermostat is satisfied.

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 Contactor for WPA4424000RKB1...

$41.60

Frequently Asked Questions

Does this Contactor fit my ICP WPA4424000RKB1 — 1-Pole 30A 24V Coil w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPA4424000RKB1 — 1-Pole 30A 24V Coil 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 WPA4424000RKB1 — 1-Pole 30A 24V Coil 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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