41 / E41
Control board has detected a low refrigerant condition
This code typically points to
- Refrigerant leak
- Low refrigerant charge
- Thermistors inoperable or not properly connected
Next checks to confirm
- Test for system leaks using leak-test procedure
- Check refrigerant charge level and adjust if needed
- Check connection to thermistor and repair/replace if needed
Escalation
Refrigerant-protection fault
Reset behavior
Clears after refrigerant condition/sensor issue is corrected.
Urgent
Fix now