What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TNLS1211H — 115V 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 TNLS1211H — 115V 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 4-Pole 20A Contactor for TNLS1211H — 115V Coil | Ships Today

Name: Tempstar 4-Pole 20A Contactor for TNLS1211H — 115V Coil | Ships Today
Brand: Tempstar
SKU: 51307868500-GEN
Price: 34.00 USD
Availability: InStock

SKU: 51307868500-GEN Brand: Tempstar

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Overview

This is a genuine OEM 4-pole definite purpose contactor (part number 51307868500) for the Tempstar TNLS1211H condensing unit. Rated at 20 amps per pole with a 115V control coil, the contactor is the high-voltage relay that energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. When the 115V signal reaches the coil, the electromagnet pulls the contacts closed and line power flows to the outdoor unit. A worn or pitted contactor is one of the most common causes of an outdoor unit that hums but won't start, chatters, or runs intermittently. Replacing it is inexpensive insurance against compressor short-cycling and burned wiring.

Specifications

Spec	Value
Part Number	51307868500
Type	Definite Purpose Contactor
Brand	Tempstar (ICP / Heil)
Poles	4
Resistive Rating	20 Amps
Coil Voltage	115V

Compatibility

Direct factory replacement for the Tempstar TNLS1211H. Because ICP, Heil, Comfortmaker, and Tempstar share the same equipment platforms, this contactor also fits many sibling models in the same family. Always confirm your unit uses a 4-pole, 115V coil contactor before ordering.

Installation Guide

Safety First — Disconnect power at the outdoor disconnect and breaker, then verify zero voltage with a multimeter.
Access — Remove the condenser control panel access cover.
Document — Photograph every wire and terminal before disconnecting.
Remove — Label and disconnect line, load, and coil wires, then unscrew the old contactor from the bracket.
Install — Mount the new contactor and reconnect each wire exactly per your photo.
Test — Restore power, call for cooling, and confirm the contacts pull in and the unit starts cleanly.

Signs You Need a Replacement

Outdoor unit hums or buzzes but the compressor and fan won't start
Visible pitting, burning, or melted plastic on the contactor
Chattering or rapid clicking when cooling is called
Contacts welded shut so the unit won't shut off

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 4-Pole 20A Contactor fo...

$34.00

Frequently Asked Questions

Does this Contactor fit my Tempstar TNLS1211H — 115V Coil | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TNLS1211H — 115V 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 TNLS1211H — 115V 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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