What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPH4424000RKB1 — 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 WPH4424000RKB1 — 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 1-Pole 30A Contactor for WPH4424000RKB1 — 24V Coil w/ Shunt | Ships Today

Name: ICP 1-Pole 30A Contactor for WPH4424000RKB1 — 24V Coil w/ Shunt | Ships Today
Brand: ICP
SKU: 1172472
Price: 33.80 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This OEM single-pole definite purpose contactor (Part No. 1172472) is the switching relay that powers the condensing unit on your ICP / Tempstar / Heil WPH4424000RKB1 heat pump. Rated at 30 amps with a 24-volt coil and an integrated shunt, the contactor energizes the compressor and condenser fan motor whenever the thermostat calls for cooling or heat-pump operation. When the coil fails or the contact points pit and burn, the outdoor unit will stop responding, chatter, or weld shut and run continuously. Replacing a worn contactor is one of the most common and inexpensive HVAC service repairs.

Specifications

Spec	Value
Part Number	1172472
Type	Definite Purpose Contactor, 1-Pole
Brand	ICP (Tempstar / Heil / Comfortmaker)
Contact Rating	30 Amps
Coil Voltage	24V
Poles	1 (with shunt)
Fits Model	WPH4424000RKB1

Compatibility

Directly fits the ICP/Tempstar/Heil WPH4424000RKB1 heat pump condensing unit and shares the same 1-pole 30A footprint used across many ICP-family WPH-series packaged and split heat pumps. Always confirm the existing contactor's pole count and amp rating against your unit before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.
Access — Remove the condenser unit's service panel to expose the control compartment.
Document — Photograph all line, load, and 24V coil wires before disconnecting.
Remove — Label and detach the wires, then unscrew the old contactor from its bracket.
Install — Mount the new contactor and reconnect each wire exactly as photographed (line in, compressor/fan out, 24V to coil terminals).
Test — Restore power and confirm the contactor pulls in cleanly with no chatter on a cooling call.

Signs You Need a Replacement

Outdoor unit won't start though the thermostat is calling.
Loud buzzing or chattering from the contactor.
Pitted, burned, or welded contact points.
Compressor runs continuously because contacts won't open.

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 WPH...

$33.80

Frequently Asked Questions

Does this Contactor fit my ICP WPH4424000RKB1 — 24V Coil w/ Shunt | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPH4424000RKB1 — 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 WPH4424000RKB1 — 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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