Goodman HVAC Error Code 14: How to Fix It

Easy 30-45 minutes Medium Severity Verified June 2026
Summarize with ChatGPTSummarize with ClaudeSummarize with Perplexity Add as Preferred Source on Google
Error Code
14
Brand
Goodman
Product Type
hvac
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
30-45 minutes
Goodman error code 14 indicates an open suction line temperature sensor. This sensor monitors the temperature of the refrigerant suction line and helps the system operate efficiently. When it's open, the HVAC system may not run properly or may shut down. This guide walks you through diagnosing and fixing the issue.
Ad

Tools You'll Need

How to Fix Error Code 14

  1. Turn Off Power to the Unit

    High voltage can cause serious injury or death. Always verify power is off before proceeding.

  2. Locate the Suction Line Temperature Sensor

  3. Visually Inspect the Sensor and Wiring

  4. Test the Sensor with a Multimeter

  5. Check Wiring from Sensor to Control Board

  6. Replace the Sensor if Faulty

    Ensure the replacement sensor is the correct type for your Goodman model (typically a 10k ohm NTC thermistor at 77°F).

  7. Restore Power and Test

Parts You May Need

Suction line temperature sensor
Check Price on Amazon
Suction line temperature sensor
Check Price on Amazon
Suction line temperature sensor
Check Price on Amazon
Suction line temperature sensor
Check Price on Amazon
Ad

When to Call a Professional

If you are uncomfortable working with electrical components, or if the sensor replacement does not clear the error, call a licensed HVAC technician. The control board may be faulty or the wiring harness may have an internal break.

Frequently Asked Questions

What does Goodman error code 14 mean?
Error code 14 on a Goodman HVAC system indicates the suction line temperature sensor is open (no continuity). This sensor monitors refrigerant temperature and is essential for proper operation.
Can I bypass the suction line temperature sensor?
No, bypassing the sensor is not recommended. It can cause the system to run improperly, damage the compressor, or lead to safety issues. The sensor must be functioning correctly.
How much does it cost to replace a suction line temperature sensor?
The sensor itself costs around $10 to $30. If you hire a technician, labor may add $100-$200. DIY replacement saves labor costs.
Where is the suction line temperature sensor located?
It is clamped to the suction line (the larger, cooler refrigerant line) near the compressor or accumulator, inside the outdoor unit.
What tools do I need to test the sensor?
You need a multimeter capable of measuring resistance (ohms). Also, basic hand tools to access the sensor.

Related Error Codes