Samsung AM080FX A Series - Case Study - Pressure Sensor Open;Short

Samsung Electronics 248
Troubleshooting
4-4-17 Case study – Pressure sensor open/short
▪ Disconnection or breakdown of relevant sensor.
- E291 : High pressure sensor error
- E296 : Low pressure sensor error
Replace PBA
Fix
Yes
No
Check sensor connector
problem?
Fix
Replace sensor
Yes
Yes
No
No
Refrigerant amount
insufficient
voltage between
Pressure pins 3&4 on PBA = 5V
4-4 Case study for trouble shoots (cont.)