What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TSH518GKA200 — 40A 1-Pole | 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 TSH518GKA200 — 40A 1-Pole | 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 TSH518GKA200 — 40A 1-Pole | Ships Today

Name: Tempstar Contactor for TSH518GKA200 — 40A 1-Pole | Ships Today
Brand: Tempstar
SKU: 1176763-GEN
Price: 28.95 USD
Availability: InStock

SKU: 1176763-GEN Brand: Tempstar

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Overview

This is a genuine OEM 40-amp single-pole definite purpose contactor (part number 1176763) for the Tempstar TSH518GKA200 heat pump. The contactor is the electromechanical switch that energizes the compressor and condenser fan motor each time the thermostat calls for cooling or heating. When the 24V coil receives a signal, the contactor pulls in and closes the line-voltage contacts that feed the outdoor unit. Rated for 40A continuous load, this 1-pole device is built to handle thousands of switching cycles. Common failure symptoms include a buzzing or chattering outdoor unit, pitted or welded contacts that leave the compressor running constantly, or no condenser operation at all when the contacts fail to close.

Specifications

Spec	Value
Part Number	1176763
Type	Definite Purpose Contactor, 1-Pole
Brand	Tempstar
Current Rating	40 Amps
Coil Voltage	24V
Poles	1

Compatibility

Engineered as a direct-fit replacement for the Tempstar TSH518GKA200 condensing unit. Also commonly used across ICP/Heil family heat pumps and air conditioners that specify a 40A 1-pole contactor with a 24V coil. Always verify the existing part number and coil voltage before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and main breaker, then verify zero voltage with a multimeter before touching any wiring.
Access — Remove the service panel on the condensing unit to expose the contactor and control wiring.
Document — Photograph all line and low-voltage wire positions before disconnecting anything.
Remove — Note the L1/L2 line leads and the two 24V coil leads, then disconnect them and unscrew the old contactor from its bracket.
Install — Mount the new contactor, transfer the line and coil wires exactly per your photo, and torque the terminals snug.
Test — Restore power and call for cooling; the contactor should pull in cleanly with no chatter and the compressor and fan should start.

Signs You Need a Replacement

Loud humming, buzzing, or chattering from the outdoor unit
Burned, pitted, or visibly welded contacts
Compressor runs continuously even when the thermostat is satisfied
Condenser fails to start when cooling is called

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

Tempstar Contactor for TSH518GKA...

$28.95

Frequently Asked Questions

Does this Contactor fit my Tempstar TSH518GKA200 — 40A 1-Pole | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TSH518GKA200 — 40A 1-Pole | 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 TSH518GKA200 — 40A 1-Pole | 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.

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