What are the specs for this Pressure Switch?

The correct replacement for Tempstar model TCH660GKA100 — Refrigerant Safety | 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 TCH660GKA100 — Refrigerant Safety | Ships Today.

Is this pressure switch 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 Low Pressure Switch for TCH660GKA100 — Refrigerant Safety | Ships Today

Name: Tempstar Low Pressure Switch for TCH660GKA100 — Refrigerant Safety | Ships Today
Brand: Tempstar
SKU: 1184655-GEN
Price: 28.00 USD
Availability: InStock

SKU: 1184655-GEN Brand: Tempstar

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Overview

This OEM low-side pressure switch (Tempstar part number 1184655) is the refrigerant safety control on your Tempstar TCH660GKA100 system. It monitors suction-line pressure and opens the 24V control circuit if pressure falls below the safe threshold — protecting the compressor from running on a low charge, a restricted line, or loss of refrigerant. Running without this protection can ruin a compressor in minutes. A failing switch may trip falsely and lock out cooling, or fail to open and leave the compressor unprotected.

Specifications

Spec	Value
Part Number	1184655
Type	Low Pressure Switch
Brand	Tempstar
Function	Loss-of-charge refrigerant safety
Control Circuit	24V
Fit	OEM Replacement

Compatibility

Designed for the Tempstar TCH660GKA100 condensing unit and compatible Heil, ICP, and Comfortmaker outdoor units sharing this low-pressure safety control. Verify the connection fitting and trip rating match your existing switch before installing.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker, and verify zero voltage with a multimeter.
Access — Remove the service panel to reach the refrigerant line and control wiring.
Document — Photograph the switch wiring and mounting location.
Remove — Disconnect the leads; if the switch is not on a Schrader port, recover refrigerant before removing.
Install — Thread on the new switch (use a new gasket/core where applicable) and reconnect the leads per your photo.
Test — Restore power, call for cooling, and confirm the compressor runs and pressures are normal.

Signs You Need a Replacement

Compressor short-cycles or locks out on a low-pressure fault.
Cooling stops intermittently with no obvious cause.
Switch fails a continuity check at correct pressures.
Refrigerant leak or oil residue around the switch fitting.

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 Low Pressure Switch for...

$28.00

Frequently Asked Questions

Does this Pressure Switch fit my Tempstar TCH660GKA100 — Refrigerant Safety | Ships Today?

Yes. This is the factory-specified OEM pressure switch for the Tempstar TCH660GKA100 — Refrigerant Safety | 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 pressure switch on my Tempstar TCH660GKA100 — Refrigerant Safety | Ships Today?

Difficulty: Medium (20–30 min)
Step 1: Turn off power. Step 2: Locate pressure switch near draft inducer. Step 3: Note tubing orientation. Step 4: Disconnect tubing and wires. Step 5: Remove screw, install new switch. Step 6: Reconnect tubing and wires, restore power.

My furnace shows a pressure switch error. What do I replace?

Furnace LED showing pressure switch error = switch not detecting draft inducer airflow. Try first: clear the rubber tubing to the switch (often clogged with condensation). If problem persists, replace the pressure switch.

Is this pressure switch 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 pressure switch?

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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