What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TCH442AKA3 – 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 TCH442AKA3 – 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 TCH442AKA3 – 1-Pole 35A 24V Coil | Ships Today

Name: Tempstar Contactor for TCH442AKA3 – 1-Pole 35A 24V Coil | Ships Today
Brand: Tempstar
SKU: 1050839-GEN
Price: 24.95 USD
Availability: InStock

SKU: 1050839-GEN Brand: Tempstar

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Overview

This is a genuine OEM 1-pole definite purpose contactor (part number 1050839) for the Tempstar TCH442AKA3 heat pump. Rated for 35 amps with a 24V control coil, the contactor is the high-voltage switch that energizes the compressor and condenser fan motor when the thermostat calls for cooling or heating. The 24V coil pulls the contacts closed and routes line voltage to the outdoor unit. A failed or pitted contactor is one of the most common reasons a condensing unit won't start, hums without running, or chatters on and off. Pitted, welded, or burned contacts cause intermittent operation, single-phasing, and premature compressor wear.

Specifications

Spec	Value
Part Number	1050839
Type	Definite Purpose Contactor
Poles	1 (Single-Pole)
Resistive Rating	35 Amps
Coil Voltage	24V
Brand	Tempstar (ICP/Heil)
Fits Model	TCH442AKA3

Compatibility

Designed as a direct OEM replacement for the Tempstar TCH442AKA3 and related ICP/Heil/Comfortmaker condensing units that use the 1050839 contactor. Always confirm your existing contactor part number and coil voltage before ordering.

Installation Guide

Safety First – Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.
Access – Remove the condensing unit service panel.
Document – Photograph all line and 24V control wires before disconnecting.
Remove – Note wire positions, disconnect leads, and unscrew the old contactor from the bracket.
Install – Mount the new contactor and reconnect each wire exactly per your photo, line voltage to L1/T1 and 24V to the coil terminals.
Test – Restore power, call for cooling, and confirm the contacts pull in and the compressor and fan start.

Signs You Need a Replacement

Outdoor unit hums but the compressor and fan won't start.
Contacts are pitted, blackened, or welded together.
Chattering or buzzing from the contactor when cooling is called.
Intermittent cooling or the unit cycling on and off rapidly.

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 TCH442AKA...

$24.95

Frequently Asked Questions

Does this Contactor fit my Tempstar TCH442AKA3 – 1-Pole 35A 24V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TCH442AKA3 – 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 TCH442AKA3 – 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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