Code 46 — Brownout Event (230V)

What does 46 mean?

This fault indicates that the system experienced a brownout event, meaning a temporary drop in incoming 230V power. This can affect Infinity/Evolution ODU Two Capacity, 18VS,19VS/V-HP/AC, GeoHP, and Greenspeed/Extreme units.

• Unstable main power supply to the home
• Local grid issues
• Overloaded electrical circuit
• Loose wiring connection at the breaker or unit

Click steps to track your progress.

1. 1

   Check your main electrical panel for any tripped circuit breakers related to the HVAC system.

2. 2

   Turn off the power to the affected unit at the circuit breaker for 30 seconds, then restore.

3. 3

   If this occurs frequently, check with your utility company for power quality issues in your area.

4. 4

   If the problem continues, have an electrician or HVAC technician check the unit's power connections.