What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TCA442AKA5 — 1-Pole 35A 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 Tempstar equipment which lists the model number TCA442AKA5 — 1-Pole 35A 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.

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 TCA442AKA5 — 1-Pole 35A 24V Coil | Ships Today

Name: Tempstar Contactor for TCA442AKA5 — 1-Pole 35A 24V Coil | Ships Today
Brand: Tempstar
SKU: 1050839-GEN
Price: 32.95 USD
Availability: InStock

SKU: 1050839-GEN Brand: Tempstar

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Overview

This is a genuine OEM single-pole contactor (part number 1050839) for the Tempstar TCA442AKA5 air conditioning condensing unit. The contactor is the electrically-controlled switch that energizes the compressor and outdoor condenser fan whenever the thermostat calls for cooling. Rated at 35 amps with a 24-volt control coil, it carries the full line voltage load to the compressor while being safely triggered by the low-voltage thermostat circuit. When a contactor fails, the most common symptoms are a unit that hums but won't start, pitted or welded contacts that keep the compressor running continuously, or no outdoor unit operation at all even though the thermostat is calling for cool air. Replacing a worn contactor restores reliable starts and protects the compressor from damaging chatter.

Specifications

Spec	Value
Part Number	1050839
Type	Definite Purpose Contactor, Single Pole (1P)
Brand	Tempstar
Contact Rating	35 Amps
Coil Voltage	24V
Poles	1
Fits Model	TCA442AKA5

Compatibility

This contactor is the factory-specified part for the Tempstar TCA442AKA5 condensing unit and shares the same chassis platform used across ICP / Heil / Comfortmaker branded equivalents. Always confirm the printed part number (1050839) matches the contactor currently installed in your outdoor unit before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and the breaker, then verify zero voltage with a multimeter across the contactor terminals.
Access — Remove the condenser service panel to expose the electrical compartment.
Document — Photograph all wire connections before disconnecting anything.
Remove — Label and disconnect the line, load, and 24V coil wires, then unscrew the old contactor from the mounting bracket.
Install — Mount the new contactor and reconnect each wire exactly per your photo.
Test — Restore power, call for cooling, and confirm the contactor pulls in and the compressor and fan start cleanly.

Signs You Need a Replacement

Outdoor unit hums or buzzes but the compressor will not start.
Visible pitting, burning, or melted plastic on the contactor body.
Compressor runs continuously because contacts are welded shut.
Chattering or rapid clicking when the thermostat calls for cooling.

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 TCA442AKA...

$32.95

Frequently Asked Questions

Does this Contactor fit my Tempstar TCA442AKA5 — 1-Pole 35A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TCA442AKA5 — 1-Pole 35A 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 Tempstar TCA442AKA5 — 1-Pole 35A 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 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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