What amp contactor do I need for my ICP system?

The correct replacement for ICP model WJH448000KTP0A1 — 40A 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 WJH448000KTP0A1 — 40A 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 Contactor for WJH448000KTP0A1 — 40A 24V Coil | Ships Today

Name: ICP 1-Pole Contactor for WJH448000KTP0A1 — 40A 24V Coil | Ships Today
Brand: ICP
SKU: 1173690
Price: 36.40 USD
Availability: InStock

SKU: 1173690 Brand: ICP

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Overview

This OEM single-pole 40A contactor with a 24V coil is the primary switching relay for the ICP / Tempstar / Heil WJH448000KTP0A1 condensing unit. On a cooling call, the 24V control signal energizes the coil and pulls the contacts closed, feeding line voltage to the compressor and condenser fan. Switching high current through every cooling cycle eventually pits, burns, or welds the contacts. Pitted contacts cause hard starts and chatter; welded contacts keep the compressor running after the thermostat is satisfied; a failed coil prevents the contactor from pulling in at all. A correct 40A OEM contactor restores clean switching and protects the compressor from voltage drop and short-cycling.

Specifications

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

Compatibility

Factory-spec replacement for the ICP / Tempstar / Heil WJH448000KTP0A1 heat pump / condenser. Confirm a 1-pole, 40A contact rating and a 24V coil to match your unit's control circuit before installing.

Installation Guide

Safety First — Disconnect power at the breaker and disconnect, then verify zero voltage with a multimeter.
Access — Remove the condenser service panel.
Document — Photograph all line, load, and 24V coil connections before disconnecting.
Remove — Disconnect the wires, unscrew the contactor from its mounting plate, and lift it out.
Install — Mount the new contactor and reconnect line, load, and 24V coil leads exactly per your photo.
Test — Restore power, call for cooling, and confirm the contactor pulls in cleanly and the compressor starts.

Signs You Need a Replacement

Buzzing or chattering contactor on a cooling call
Burnt, pitted, or welded contacts
Compressor continues running after the thermostat is satisfied
Contactor will not pull in despite 24V at the coil

Shipping & Returns

Ships same day on orders placed 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 Contactor for WJH4480...

$36.40

Frequently Asked Questions

Does this Contactor fit my ICP WJH448000KTP0A1 — 40A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the ICP WJH448000KTP0A1 — 40A 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 WJH448000KTP0A1 — 40A 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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