Error 428 — Compressor operation stop due to abnormal compression ratio

¿Qué significa 428 ?

The compressor has stopped because the ratio between its discharge and suction pressures is abnormal. This suggests an internal issue with the compressor or refrigerant circuit.

• Internal compressor fault
• Severe refrigerant flow restriction
• Incorrect system pressures
• Faulty pressure sensors

Haga clic en los pasos para seguir su progreso.

1. 1

   Check refrigerant pressures (high and low side) with appropriate gauges.

2. 2

   Inspect the refrigerant circuit for any blockages or restrictions.

3. 3

   Verify the operation of pressure sensors.

4. 4

   This error typically requires a technician to diagnose the compressor itself.