In brief

Fault code 369 on Atlantic Alféa means: Fault code 369 indicates an anomaly in the refrigerant pressure reading by the electronic control board. Most common cause: Pressure sensor disconnected, faulty, or pressure out of range (complete vacuum or extreme overpressure). First action: Open the outdoor unit.. Call a registered engineer if the fault returns after basic checks or involves refrigerant work (F-Gas registered engineer required).

According to the Atlantic Service Manual, the most common cause of fault code 369 is a disconnected or faulty pressure sensor, not the inverter board.

369AtlanticAlféa

Fault Code 369 Atlantic: Circuit Pressure — Resolution

Fault code 369 indicates an anomaly in the refrigerant pressure reading by the electronic control board.

Source: Atlantic Service Manual

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What does fault code 369 on Atlantic mean?

Fault code 369 indicates an anomaly in the refrigerant pressure reading by the electronic control board.

Pressure sensor disconnected, faulty, or pressure out of range (complete vacuum or extreme overpressure).

Symptômes

  • Outdoor unit stops
  • Error displayed on indoor unit

Diagnostic

1. Visual Inspection

  • Open the outdoor unit.
  • Check that the pressure sensor connector (on the copper pipe) is properly engaged on the board.

How to reset fault code 369 on Atlantic?

Replace the pressure sensor or the inverter board if the sensor is good.

When should you call an F-Gas engineer?

Occurs after refrigerant recharge, leak repair, or sensor disconnection during outdoor unit disassembly.

Affected models

  • Alféa
  • Excellia

Field context

Occurs after refrigerant recharge, leak repair, or sensor disconnection during outdoor unit disassembly.

Technical source data

Fault code 369 on Atlantic corresponds to a refrigerant pressure sensor reading anomaly by the inverter board. Check the sensor connection, pressure range (vacuum or overpressure), then the sensor itself before suspecting the board.

Questions fréquentes

Sensor or inverter board first on fault code 369 Atlantic?

Always validate the sensor and its wiring first: this is the most common and least costly cause.

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