E57 - Refrigerant leak or shortage of refrigerant

What does E57 mean?

This error indicates a refrigerant leak or a shortage of refrigerant in the system, specifically referenced by FDCVA151-251, affecting system performance.

• Refrigerant leak in the piping or components.
• Insufficient refrigerant charge from installation.
• Damaged refrigerant lines.
• Faulty pressure sensors misinterpreting refrigerant levels.

Click steps to track your progress.

1. 1

   Turn off the main power to the AC system at the circuit breaker.

2. 2

   Visually inspect refrigerant lines for any signs of oil residue, which can indicate a leak.

3. 3

   Contact a qualified HVAC technician immediately to detect and repair refrigerant leaks, then recharge the system.

4. 4

   Do not operate the unit with low refrigerant, as it can cause severe damage to the compressor and other components.