What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPA3422000RKB1 — 24V Coil | 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 WPA3422000RKB1 — 24V Coil | 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 40A Contactor for WPA3422000RKB1 — 24V Coil | Ships Today

Name: ICP 1-Pole 40A Contactor for WPA3422000RKB1 — 24V Coil | Ships Today
Brand: ICP
SKU: 1173690
Price: 36.34 USD
Availability: InStock

SKU: 1173690 Brand: ICP

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Overview

This genuine OEM single-pole contactor (OEM 1173690) is the high-voltage switch that powers the compressor and condenser fan on the ICP / Tempstar / Heil WPA3422000RKB1 heat pump. When the thermostat calls for cooling or heating, the 24V control circuit energizes the coil, pulling the contacts closed to send line voltage to the outdoor unit. Rated at 40 amps with a 24-volt coil, it handles the inrush and continuous load of the compressor. Contactors are a frequent failure point because the contacts arc, pit, and weld over thousands of cycles — replacing a worn contactor restores reliable starting and prevents costly compressor damage.

Specifications

Spec	Value
OEM Part Number	1173690
Type	Definite Purpose Contactor
Brand	ICP / Tempstar / Heil
Poles	1-Pole
Contact Rating	40 Amps
Coil Voltage	24 VAC
Fits Model	WPA3422000RKB1

Compatibility

Direct-fit replacement for the ICP WPA3422000RKB1 heat pump and related Tempstar, Heil, and Comfortmaker condensing units using a 1-pole 40A definite-purpose contactor with a 24V coil. Confirm pole count, amp rating, and coil voltage against your existing part.

Installation Guide

Safety First — Disconnect power and pull the outdoor disconnect; verify zero voltage with a multimeter.
Access — Remove the condenser service panel.
Document — Photograph all line, load, and coil wiring before disconnecting.
Remove — Unscrew the mounting screws and lift out the old contactor.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test — Restore power, call for cooling, and confirm the contacts pull in and the compressor starts.

Signs You Need a Replacement

Outdoor unit won't energize on a cooling call
Buzzing, chattering, or stuck contacts
Pitted, burned, or melted contact points
Compressor short-cycling or intermittent operation

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 40A Contactor for WPA...

$36.34

Frequently Asked Questions

Does this Contactor fit my ICP WPA3422000RKB1 — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPA3422000RKB1 — 24V Coil | 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 WPA3422000RKB1 — 24V Coil | 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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