Error Code 86E
Power supply voltage too high for inverter
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: 86 E
What This Means
Input voltage exceeds maximum operating threshold; SMPS output regulation failure; Overvoltage surge event
What actually causes this:
An electrical surge or power spike damaged the voltage regulation, or the inverter's voltage regulator failed.
First Thing to Check
Use a surge protector or check if a power line issue occurred during a thunderstorm.
Parts Involved
How to Fix
- 1
Measure voltage between MAIN PCB CN75 #3 (ORANGE) and #10 (GRAY)
- 2
Voltage should be 7V-12V
- 3
Check if home AC voltage exceeds 135V (for 110-127V models) or 254V (for 220-240V models)
- 4
Check for evidence of power surge damage
Other Error Codes for RS25H5121WW
Ice maker position sensor out of sync
Refrigerator defrost heating system malfunction
Refrigerator compartment warming up abnormally
Room temperature sensor malfunction
Compressor motor won't start
Refrigerator defrost temperature sensor malfunction
Freezer compartment fan motor not responding
Freezer defrost heating system malfunction