Sub-Zero Appliance Repair & Error Code Lookup
Find your Sub-Zero, Wolf, or Cove error code below, see what it means, and know whether it's safe to wait or time to call a technician.
Sub-Zero Refrigerator & Freezer — Error Codes
| Code | What it means | Urgency |
|---|---|---|
| EC20 / EC24 |
Defrost or Thermistor Fault
Evaporator thermistor is shorted, open, or cabinet temperature is inconsistent during defrost.
|
Medium |
| EC40 / EC50 |
Excessive Compressor Run Time
Compressor has run continuously for over 24 hours. Often caused by dirty condenser coils or door left open.
|
High |
| EC06 / EC07 |
Thermistor Out of Range
Refrigerator or freezer zone temperature thermistor reading error or wire short.
|
Medium |
| BI / SERVICE |
Ice Maker or Water System Error
Water line restricted, valve fault, or ice maker harvest cycle timing error.
|
Low |
Most no-cooling calls on Sub-Zero fridges are caused by a dirty condenser coil. Vacuum the condenser coils behind the top grille once or twice a year before assuming a failed component.
Signs your Sub-Zero refrigerator needs a professional
- Food spoiling faster than usual or freezer items softening
- Compressor running constantly or unusually loud
- Water pooling underneath or inside the unit
- Frost buildup on the back panel despite auto-defrost
Cove (Sub-Zero Family) Dishwasher — Error Codes
| Code | What it means | Urgency |
|---|---|---|
| 560186 / 560187 |
Water Fill / Flow Problem
Dishwasher is not receiving sufficient water flow. Check water supply shut-off valve and hose.
|
Medium |
| 800140 |
Drain Pump / Drainage Error
Water is failing to drain out of the tub. Check drain filter and disposal connection.
|
High |
| 800142 |
Heating System Fault
Water is not reaching proper wash temperature or drying heater failed to engage.
|
Medium |
| 600151 |
System Error / Call Service
Main control board communication error. Reset at circuit breaker for 5 minutes.
|
High |
If your Cove dishwasher exhibits a drain code, check the drain filter at the bottom of the tub and clear any debris before replacing parts.
Signs your dishwasher needs a professional
- Standing water left in the bottom after a wash cycle
- Dishes coming out cold or gritty
- Unusual grinding noise during pump operation
- Door latch fails to close or leaks water
Wolf (Sub-Zero Family) Oven & Range — Error Codes
| Code | What it means | Urgency |
|---|---|---|
| E1 / F1 |
Door Latch or Temperature Sensor Fault
Oven door motor latch failed to align, or main sensor wire error occurred.
|
Medium |
| E2 / F2 |
Oven Over-Temperature
Cavity exceeded safe temperature limits; power shut down to protect components.
|
High |
| E3 / E4 |
Oven Sensor Open or Shorted
RTD temperature probe circuit is open circuit or shorted out.
|
Medium |
| OPP |
Self-Clean Lockout State
Door latch mechanism is locked out due to active self-cleaning or conflict error.
|
Low |
If an oven displays an error code right after a self-cleaning cycle, turn off power at the circuit breaker for 10 minutes to reset the control board and latch system.
Signs your oven or range needs a professional
- Uneven baking or food consistently under/overcooked
- Burner clicking continuously without igniting
- Oven failing to reach set preheat temperature
- Self-clean cycle locking door permanently
Sub-Zero Repair FAQ
Why is my Sub-Zero appliance showing an error code?
Error codes indicate that an internal sensor detected an operational condition out of spec. The code points technicians to the specific circuit or system.
Can I fix a Sub-Zero error code myself?
Some codes clear after resetting power at the breaker for 5 minutes. If the code returns, a hardware component requires testing or replacement.
How much does Sub-Zero appliance repair typically cost?
Costs vary depending on parts and labor. We charge a flat diagnostic fee, which is applied toward your repair if you approve the service quote.
Do you work on all Sub-Zero family products?
Yes, our technicians service Sub-Zero refrigeration units, Wolf ovens and ranges, and Cove dishwashers.
Still seeing the error?
Our technicians diagnose and repair Sub-Zero appliances every day. Get it fixed right the first time.