Carrier HVAC Error Code 87: How to Fix It

Q: Can I drive my car with error code 87?

Error code 87 is for HVAC systems, not vehicles. It indicates liquid temperature out of range, which can affect heating/cooling but is not a driving issue.

Q: What does Carrier error code 87 mean?

Carrier error code 87 means the liquid line temperature is out of range, often due to a faulty thermistor, wiring issue, or refrigerant imbalance.

Q: How do I reset Carrier error code 87?

To reset, turn off the system at the thermostat and breaker for 5 minutes, then turn back on. If the error returns, further troubleshooting is needed.

Q: Is it safe to use my HVAC with error code 87?

No. Continued operation can damage the compressor or other components. Address the error promptly.

Q: Can a dirty filter cause error code 87?

Indirectly, yes. A dirty filter can reduce airflow, causing abnormal temperatures. Always check and replace filters before other diagnostics.

Abstract

Carrier HVAC error code 87 indicates that the liquid temperature in your system is out of the expected range. This typically points to issues with the thermistor, wiring, or refrigerant level. Follow these steps to diagnose and resolve the problem safely.