Error 84 (8 Green, 4 Red Flashes) — Current sensor error

What does 84 mean?

The hydraulic unit's green LED flashes eight times and the red LED flashes four times. This indicates a problem with the current sensor in the outdoor unit, which monitors electrical current flow.

• Faulty current sensor.
• Loose or damaged wiring connected to the current sensor.
• An electrical fault or abnormal current draw triggering the sensor error.

Click steps to track your progress.

1. 1

   Power cycle the heat pump system by turning off the main breaker for 60 seconds and then restoring power.

2. 2

   Ensure there are no external electrical issues in your home that might be causing irregular current draw.

3. 3

   If the error persists, contact a qualified technician to diagnose the current sensor and associated electrical circuits.