What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TCA224AKA4 — 1-Pole 25A 24V | 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 TCA224AKA4 — 1-Pole 25A 24V | 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 TCA224AKA4 — 1-Pole 25A 24V | Ships Today

Name: Tempstar Contactor for TCA224AKA4 — 1-Pole 25A 24V | Ships Today
Brand: Tempstar
SKU: 1050699-GEN
Price: 24.95 USD
Availability: InStock

SKU: 1050699-GEN Brand: Tempstar

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Overview

This OEM single-pole contactor (part number 1050699) is the high-current switch that controls the outdoor condensing unit on your Tempstar TCA224AKA4 air conditioner. Rated at 25 amps with a 24-volt coil, it closes when the thermostat calls for cooling and delivers line voltage to the compressor and condenser fan motor. The contacts endure thousands of high-amperage switching cycles, and over time they pit, corrode, and eventually weld or fail open. A bad contactor commonly shows up as an outdoor unit that hums but won't start, fails to energize, or refuses to shut off. This is a low-cost repair that restores reliable cooling operation.

Specifications

Spec	Value
Part Number	1050699
Type	Definite Purpose Contactor, 1-Pole
Brand	Tempstar
Contact Rating	25 Amps
Coil Voltage	24 VAC
Poles	1
Fit	OEM Direct Replacement

Compatibility

A factory-correct replacement for the Tempstar TCA224AKA4 condensing unit, this contactor (1050699) is used across many ICP-family units including matching Heil, Comfortmaker, and Carrier-built models that specify a 1-pole 25A 24V contactor. Verify the part number stamped on your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage at the terminals with a multimeter.
Access — Remove the condensing unit's access panel to reach the control compartment.
Document — Photograph all wiring connections before disconnecting.
Remove — Label and remove the line, load, and 24V coil leads, then unbolt the old contactor.
Install — Mount the new contactor and reconnect each wire per your reference photo.
Test — Restore power and confirm the contactor pulls in and the unit runs on a cooling call.

Signs You Need a Replacement

Humming or buzzing with no compressor or fan startup
Burned, pitted, or welded contacts
System won't stop running after satisfying the thermostat
Intermittent or chattering engagement

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 TCA224AKA...

$24.95

Frequently Asked Questions

Does this Contactor fit my Tempstar TCA224AKA4 — 1-Pole 25A 24V | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TCA224AKA4 — 1-Pole 25A 24V | 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 TCA224AKA4 — 1-Pole 25A 24V | 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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