Troubleshoot error code “P5” in Ferroli air-conditioning

How to eliminate P5 error in Ferroli air conditioning?

  • Error: P5
  • Description: Protection against the large temperature difference between the entrance and water outlet from the plate heat intercamiator – High temperature protection in the battery
  • Cause: 
  • Solution: Check that all water circuit interception valves are completely open. 1. Check that the water filter is not clogged. If necessary, clean it with running water. 2. Check that the system is properly loaded with water and that it has no penalty air. If necessary, purge the system of the system. 3. Check in the pressure gauge that the water pressure is> 1 bar. 4. Check that the pump speed is not too low and, therefore, does not guarantee sufficient flow. If necessary, increase speed. 5. Check that the expansion vessel is not broken. 6. Check that hydraulic circuit load losses are not too high for the pump (consult the total height of the water pump).

More tips

If you fail to solve the error in your air conditioning Ferroli, we recommend that you contact the technical or specialist service. They will know how to diagnose and solve the problem efficiently, saving time and money.

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