What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model T4A360GKN300 – 40A Definite Purpose | 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 Tempstar equipment which lists the model number T4A360GKN300 – 40A Definite Purpose | 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.

Is this contactor compatible with Bryant or Payne systems too?

Many Tempstar parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

Tempstar

Tempstar Contactor for T4A360GKN300 – 40A Definite Purpose | Ships Today

Name: Tempstar Contactor for T4A360GKN300 – 40A Definite Purpose | Ships Today
Brand: Tempstar
SKU: 1176763-GEN
Price: 38.00 USD
Availability: InStock

SKU: 1176763-GEN Brand: Tempstar

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This is a genuine OEM 40-amp definite purpose contactor (part number 1176763) for the Tempstar T4A360GKN300 condensing unit. Rated at 40 amps, this contactor handles the higher inrush and running current of a larger-tonnage condenser. It serves as the main high-voltage switch for the outdoor unit — when the thermostat calls for cooling, the control coil energizes and closes the contacts to power the compressor and condenser fan motor. Contactors are among the most failure-prone components in any air conditioner because they make and break high current under load thousands of times each season. Worn contactors develop pitted or welded contacts, weak or open coils, and audible chatter, any of which can leave the outdoor unit dead or stuck running.

Specifications

Spec	Value
OEM Part Number	1176763
Type	Definite Purpose Contactor
Brand	Tempstar
Contact Rating	40 Amps
Coil Voltage	24 VAC
Fits Model	T4A360GKN300

Compatibility

This 40A contactor is the factory replacement for the Tempstar T4A360GKN300 air conditioner and other ICP-family (Tempstar, Heil, Comfortmaker) condensing units specifying OEM part 1176763. Confirm the amp rating and part number on your existing contactor before ordering.

Installation Guide

Safety First – Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.
Access – Remove the condenser service panel to expose the control compartment.
Document – Photograph all wiring before disconnecting any leads.
Remove – Disconnect the line, load, and coil wires and unfasten the old contactor from its bracket.
Install – Mount the new 40A contactor and reconnect each wire exactly as photographed.
Test – Restore power and confirm the contacts close on a cooling call and the unit starts.

Signs You Need a Replacement

Outdoor unit will not start despite a cooling call.
Buzzing or humming with no compressor engagement.
Pitted, blackened, or welded contacts.
Compressor will not shut off because contacts are stuck closed.

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. 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

Tempstar Contactor for T4A360GKN...

$38.00

Frequently Asked Questions

Does this Contactor fit my Tempstar T4A360GKN300 – 40A Definite Purpose | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar T4A360GKN300 – 40A Definite Purpose | 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 Tempstar T4A360GKN300 – 40A Definite Purpose | 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 Tempstar 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 Tempstar 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.

Menu