What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TXA248AKA2 — OEM 1050839 | 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 TXA248AKA2 — OEM 1050839 | 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 1-Pole 35A 24V Contactor for TXA248AKA2 — OEM 1050839 | Ships Today

Name: Tempstar 1-Pole 35A 24V Contactor for TXA248AKA2 — OEM 1050839 | Ships Today
Brand: Tempstar
SKU: 1050839-GEN
Price: 26.95 USD
Availability: InStock

SKU: 1050839-GEN Brand: Tempstar

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Overview

This is the genuine OEM definite-purpose contactor (part number 1050839) for the Tempstar TXA248AKA2 condensing unit. It is a 1-pole, 35-amp contactor with a 24-volt control coil. The contactor is the electrically operated switch that sends line voltage to the compressor and condenser fan motor whenever the thermostat calls for cooling. When the 24V coil energizes, the single pole contact closes and one leg is switched while the other remains a common line connection. Worn contactors are among the most frequent no-cooling failures — arcing pits and burns the contacts until they weld shut or stop making contact, so the outdoor unit either won't start or won't shut off.

Specifications

Spec	Value
Part Number	1050839
Type	Definite Purpose Contactor
Brand	Tempstar (ICP / Heil)
Poles	1-Pole
Contact Rating	35 Amps
Coil Voltage	24 VAC
Fits Model	TXA248AKA2
Fitment	OEM Genuine

Compatibility

Built for the Tempstar TXA248AKA2 air conditioner / heat pump condenser. This 1-pole 35A 24V contactor is used across the ICP family (Tempstar, Heil, Comfortmaker, Arcoaire) on similarly sized condensing units. Confirm your existing contactor is 1-pole, 35A, with a 24V coil before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter at the line terminals.
Access — Remove the condenser service panel to reach the contactor in the control box.
Document — Photograph every line, load, and 24V coil wire before disconnecting.
Remove — Label and transfer wires one at a time, then unbolt the old contactor from its base.
Install — Mount the new 1050839 contactor and reconnect each wire to its matching terminal per your photo.
Test — Restore power, call for cooling, and confirm the coil pulls in and the compressor and fan start.

Signs You Need a Replacement

Condenser does not start when the thermostat calls for cooling
Buzzing, humming, or chattering at the contactor
Burned, pitted, or welded contacts
Compressor runs continuously because the contact is stuck closed

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 1-Pole 35A 24V Contacto...

$26.95

Frequently Asked Questions

Does this Contactor fit my Tempstar TXA248AKA2 — OEM 1050839 | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TXA248AKA2 — OEM 1050839 | 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 TXA248AKA2 — OEM 1050839 | 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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