SubZero Refrigerator Freezer Error Code 85 – How to fix? by KatyApplianceRepair.com  

Sub-Zero error code EC 85 indicates
a compressor overheating condition. Below is a quick reference
and troubleshooting guide for this code.

Quick Reference

Error Code	Meaning	Severity
EC 85	Variable-speed compressor overheating — excessive current draw or refrigerant leak	High

Cause & Solution

Cause	What to Check	Fix
Refrigerant leak reducing cooling efficiency	Look for oil stains near refrigerant lines; check pressures	Locate and repair the leak; recharge refrigerant (certified technician only)
Compressor drawing excessive current	Measure amp draw with a clamp meter during operation	If draw exceeds rated amps, the compressor may need replacement