What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TXA442AKA1 — 1-Pole 35A 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 TXA442AKA1 — 1-Pole 35A 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 Definite Purpose Contactor for TXA442AKA1 — 1-Pole 35A 24V | Ships Today

Name: Tempstar Definite Purpose Contactor for TXA442AKA1 — 1-Pole 35A 24V | Ships Today
Brand: Tempstar
SKU: 1050839-GEN
Price: 32.95 USD
Availability: InStock

SKU: 1050839-GEN Brand: Tempstar

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Overview

This genuine OEM single-pole definite purpose contactor (part #1050839) is the electromagnetic switch that controls power to the compressor and condenser fan motor in your Tempstar TXA442AKA1 system. Rated at 35 amps with a 24-volt coil, the contactor energizes when your thermostat calls for cooling, pulling its contacts closed to deliver line voltage to the outdoor unit. Over time the contacts pit, burn, and weld from the constant arcing of high-current switching. A failing contactor is one of the most common causes of an AC unit that won't start, hums but won't engage, or runs continuously because the contacts have fused shut. Replacing this inexpensive part restores reliable starts and protects the costlier compressor downstream.

Specifications

Spec	Value
Part Number	1050839
Type	Definite Purpose Contactor, 1-Pole
Brand	Tempstar
Contact Rating	35 Amps
Coil Voltage	24V
Poles	1
Fitment	OEM Replacement

Compatibility

Engineered as a direct-fit OEM replacement for the Tempstar TXA442AKA1 condensing unit. This contactor is also used across many ICP-family (Heil, Comfortmaker, Tempstar) single-stage condensers of the same generation. Always verify your existing contactor's amp and coil-voltage ratings before installing.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter across the contactor terminals.
Access — Remove the condenser unit's electrical service panel.
Document — Photograph all wire positions before disconnecting anything.
Remove — Note the line, load, and 24V coil leads, disconnect them, and unscrew the old contactor from its bracket.
Install — Mount the new contactor, then reconnect each wire to the matching terminal per your photo.
Test — Restore power and confirm the contactor pulls in on a cooling call and the compressor and fan start cleanly.

Signs You Need a Replacement

Outdoor unit hums but the compressor and fan won't start
Burnt, pitted, or melted contact points visible on the contactor
AC runs nonstop because the contacts are welded closed
Buzzing or chattering noise from the contactor 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 Definite Purpose Contac...

$32.95

Frequently Asked Questions

Does this Contactor fit my Tempstar TXA442AKA1 — 1-Pole 35A 24V | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TXA442AKA1 — 1-Pole 35A 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 TXA442AKA1 — 1-Pole 35A 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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