What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPH3424000RKC1 — 24V | 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 WPH3424000RKC1 — 24V | 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 w/ Shunt for WPH3424000RKC1 — 24V | Ships Today

Name: ICP Single-Pole 30A Contactor w/ Shunt for WPH3424000RKC1 — 24V | Ships Today
Brand: ICP
SKU: 1172472
Price: 42.84 USD
Availability: InStock

SKU: 1172472 Brand: ICP

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Overview

This is a genuine OEM single-pole definite purpose contactor with shunt (Part No. 1172472) for the ICP/Tempstar/Heil WPH3424000RKC1 heat pump. The contactor is the electromechanical switch that powers the outdoor compressor and condenser fan when the thermostat calls for operation. The integrated shunt provides a return path on the unswitched leg so the contactor reliably carries the 30-amp load with a 24-volt control coil. When the 24V coil energizes, the contacts pull in and send line voltage to the unit. Typical failure symptoms include a unit that hums but won't start, chattering, pitted or welded contacts that keep the compressor running, and arcing or burnt terminals.

Specifications

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

Compatibility

Engineered as the factory replacement for the ICP/Tempstar/Heil WPH3424000RKC1 heat pump condensing unit. Single-pole 30A 24V contactors with shunt of this footprint appear across many ICP-family outdoor units — confirm amp rating, coil voltage, pole count, and the shunt configuration against your existing part before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter at the contactor line terminals.
Access — Remove the condensing unit service panel.
Document — Photograph all wire connections, including the shunt leg, before disconnecting.
Remove — Label and disconnect the line, load, and 24V coil wires, then unscrew the old contactor from the bracket.
Install — Mount the new contactor, reconnect every wire exactly per your photo.
Test — Restore power and confirm the contactor pulls in on a call and that the compressor and fan energize.

Signs You Need a Replacement

Outdoor unit hums or buzzes but won't start.
Pitted, burned, or welded contacts.
Compressor runs continuously and won't shut off.
Chattering relay or intermittent cooling and heating.

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 w/...

$42.84

Frequently Asked Questions

Does this Contactor fit my ICP WPH3424000RKC1 — 24V | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPH3424000RKC1 — 24V | 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 WPH3424000RKC1 — 24V | 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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