Error F29 — Low discharge super heat

What does F29 mean?

The system is not achieving sufficient superheat on the discharge line, which can indicate a problem with refrigerant flow or heat absorption.

• Low refrigerant charge.
• Issue with the expansion valve.
• Overcooling of the evaporator.

Click steps to track your progress.

1. 1

   Restart the system.

2. 2

   Ensure outdoor unit vents are clear.

3. 3

   Contact your installer immediately, as this indicates a potential refrigerant system problem.

4. 4

   A technician will need to measure refrigerant pressures and temperatures.