What amp contactor do I need for my ICP system?

The correct replacement for ICP model WPH3604000RKC1 — 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 WPH3604000RKC1 — 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 WPH3604000RKC1 — 24V Coil | Ships Today

Name: ICP 1-Pole 40A Contactor for WPH3604000RKC1 — 24V Coil | Ships Today
Brand: ICP
SKU: WPH3604000RKC1
Price: 42.84 USD
Availability: InStock

SKU: WPH3604000RKC1 Brand: ICP

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Overview

This OEM single-pole contactor (part number 1173690) is the primary switching relay for the ICP/Tempstar/Heil WPH3604000RKC1 heat pump condensing unit. Rated for 40 amps with a 24-volt control coil, the contactor closes when the thermostat calls for cooling or heating, sending line voltage to the compressor and condenser fan motor. When the coil fails, the contacts pit, or the points weld shut, the outdoor unit either will not start or will not shut off. A 1-pole, 40A, 24V contactor is one of the most common HVAC service replacements because the contacts carry full compressor inrush current every cycle.

Specifications

Spec	Value
Part Number	1173690
Type	Definite Purpose Contactor, 1-Pole
Brand	ICP (Tempstar / Heil)
Contact Rating	40 Amps
Coil Voltage	24V
Poles	1
Fit	OEM Replacement

Compatibility

Directly fits the ICP/Tempstar/Heil/Comfortmaker WPH3604000RKC1 heat pump. The 1-pole 40A 24V form factor is also a common service replacement across many ICP-family condensing units and heat pumps. Always confirm the original contact rating and coil voltage before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the service/electrical panel on the condensing unit.
Document — Photograph all line, load, and 24V coil wiring before disconnecting.
Remove — Note wire positions, disconnect the line and load terminals plus the two coil leads, and unscrew the old contactor from its bracket.
Install — Mount the new contactor, reconnect line, load, and 24V coil wiring exactly per your photo.
Test — Restore power, call for cooling, and confirm the contactor pulls in and the compressor and fan energize.

Signs You Need a Replacement

Outdoor unit hums but compressor and fan do not start.
Contactor points are pitted, burned, or welded together.
Unit runs continuously and will not shut off (stuck contacts).
Buzzing or chattering from the contactor when the thermostat calls.

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 WPH...

$42.84

Frequently Asked Questions

Does this Contactor fit my ICP WPH3604000RKC1 — 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WPH3604000RKC1 — 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 WPH3604000RKC1 — 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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