Ecobee Thermostat Error Code 5: How to Fix It

Q: What does Ecobee error code 5 mean?

Error code 5 means the thermostat detected a compressor over current condition. This is a safety measure to prevent damage from excessive electrical draw.

Q: Can a dirty air filter cause error code 5?

Yes, a dirty filter can restrict airflow, causing the compressor to work harder and draw more current, triggering the error.

Q: How do I reset Ecobee error code 5?

Turn off power to the HVAC system at the breaker, wait 30 seconds, then turn it back on. If the error persists, perform a factory reset on the Ecobee via Settings > Reset.

Q: Is it safe to run my AC with error code 5?

No, running the system with this error can damage the compressor. Troubleshoot and fix the issue before restarting.

Q: What capacitor do I need for my compressor?

Capacitors are rated by microfarads (µF) and voltage. Check the existing capacitor's label for ratings (e.g., 35/5 µF 370V). Replace with a capacitor of the same ratings.

Abstract

Ecobee error code 5 indicates a compressor over current condition, meaning the thermostat has detected that the compressor is drawing too much electrical current. This is a safety feature to prevent damage to your HVAC system. The issue is usually caused by faulty wiring, a failing compressor, or a dirty air filter. Follow these steps to troubleshoot and resolve the problem.