What does Lo mean?

The system has detected that the outdoor ambient temperature is too low for normal operation. This is a safety measure to prevent damage.

• Outdoor temperature below the operational limit
• Faulty ambient temperature sensor
• Incorrect system settings for current conditions

Click steps to track your progress.

1. 1

   Wait for warmer outdoor temperatures.

2. 2

   Check the outdoor ambient temperature sensor for faults or damage.

3. 3

   Ensure the system is not attempting to operate outside its designed temperature range.