Repair tips
Error codes
What the codes on a Sub-Zero, Wolf or Cove display mean, and what to do first.
Nothing matches. Try the code exactly as your display shows it, or call 888-841-1175.
Two things first
Where a step says reset, turn the home circuit breaker for the appliance off for 30 seconds, then back on, and test it again.
Only clear a code when the temperatures are near normal: the technician reads the logged code to find the fault.
Sub-Zero codes and lights
| Code | What it means | What to do |
|---|---|---|
| Service light, steadyClassic (BI) | A code has been logged, or one was not cleared after a service. | Check the temperatures match the settings. If they do not, book service. |
| Service light flashing, chimingClassic (BI) | A major code has been logged. | With no temperature problem, reset at the breaker and watch it. If it comes back, book service. |
| Service between the temperatures600 and 700 Series | The compressor is running too long, or the unit is not cooling well. | Temperatures high: book service. Near normal: turn the unit off, clean the condenser, check the door closes, then reset. |
| Vacuum CondenserOlder 600 Series | The unit is not running efficiently, often a dirty condenser or a door seal. | Temperatures high: book service. Near normal: clean the condenser and check the door. Food above 45 °F is not safe. |
| dO OrClassic (BI) | The door has been open for more than five minutes. | Close the door. The panel then ignores the keys for five minutes, which is normal. |
| EE and ServiceClassic (BI) and 600 Series | A temperature sensor fault: freezer if EE is on the left, refrigerator if on the right. | There is no owner fix. Book service and tell us the code and the temperatures. |
| EC40 and Service600, 648PRO and 700 Series | The freezer compressor has run too long: a door left open, or a sealed system, fan or sensor problem. | Under 10 degrees above the setting: clean the condenser. Over 10 degrees and the door was shut: book service. Clear the code (hold the door alarm key 15 seconds) only if temperatures are near normal. |
| EC50 and Service600, 700 and Designer | The refrigerator compressor has run too long. | Temperatures high: book service. Near normal: clean the condenser, then hold the door alarm key 15 seconds to clear it. |
| 21 or EC21600 Series | Defrost overheat. | Temperatures high: book service. Near normal: clean the condenser, then clear the code. |
| L0 CClassic (BI) | A key was pressed while the unit thought the door was closed. It can show at first power-up. | Check the light switch is not stuck, then leave the door closed for 45 minutes to reset the control. |
| Ice cube icon flashingClassic (BI) | The water valve ran too long, so the ice maker switched itself off. | Check the filter light, the water supply and for jammed cubes, then hold the Alarm key until CFC shows. |
| SERVICE and ICE flashing700 Series | The water valve ran too long. | Turn the unit off for 10 seconds, then on. If it keeps coming back, book service. |
| H2 LOClassic | The water dispenser locked itself after a lot of water in a short time. | Wait five minutes, then press the water key again, for 60 seconds at most. |
| 10 C 00 or 10 C 01Designer | A fault in the condenser temperature sensor. | Reset at the breaker and test. If it comes back, book service. |
Wolf codes and messages
| Code | What it means | What to do |
|---|---|---|
| LOOvens, while preheating | Not an error: the oven is still preheating. | Wait for it to reach the temperature you set. |
| OPPDual Fuel ranges, on an oven knob | One oven is self-cleaning, so the other one cannot be used. | Nothing is wrong. It clears when the self-clean ends. |
| Oven or griddle light flashingGas ranges | The flame went out and the range locked itself for safety. | Turn the knob off, then on again. |
| F1L Series wall ovens | The door lock was not sensed in time, or the door was slammed while heating. | Reset at the breaker, then test in Bake. |
| COMM ERRL Series ovens | The display lost contact with the oven controller. | Reset at the breaker. If it comes back, book service. |
| PROBE SHORTEDL and E Series wall ovens | The temperature probe has failed. | Replace the probe; a reset may be needed to clear the message. Still there? Book service. |
| 3311E Series ovens | The oven's thermal cutout has opened. | Reset at the breaker and test. If it comes back, book service. |
| 9010, 9020 or 9120M Series wall ovens | A touch pad fault: keys that do not respond or act on their own, beeping. | Reset at the breaker and test. If it returns, the control panel may need replacing: book service. |
| E87 or F4Convection steam ovens | The exhaust valve is stuck or blocked. | Reset at the breaker and test. If it comes back, book service. |
| ERR OCOlder Dual Fuel ranges | A knob lost contact with the oven controller. | Power off at the breaker, pull the knob, make sure its metal contacts are clean and dry, push it back firmly, then power on. |
| E1CT induction cooktops | It is too hot around the cooktop. | Let it cool, reset at the breaker, then test. |
| E6CI induction cooktops | An electrical supply error; the pan can cause it. | Use flat, smooth cookware with enough iron, then reset and test. |
| E8CI induction cooktops | A fan error. | Turn the breaker off for 10 seconds, then test. |
Cove dishwasher codes
| Code | What it means | What to do |
|---|---|---|
| Clean Filter (30 01 14)DW24 | A reminder after 30 cycles, not a fault. | Clean the filter, then touch Cancel to reset the reminder. |
| 57 01 54DW24 | Rinse aid is low. | Add rinse aid and press Enter. |
| 56 01 86 or 56 01 87DW24 | No water came in during the first three minutes of the cycle. | Check the water supply is on and the supply line is not kinked, then reset at the breaker. |
| 80 01 40DW2450 | The drain pump ran too long, or draining could not be confirmed. | Clean the filter and the inside, check the drain line is not kinked. If it returns, reset at the breaker. |
| 80 01 86DW24 | The dishwasher is draining poorly. | Reset at the breaker and test. If it comes back, book service. |
| 70 01 97DW24 | Too much water during a wash. | Look for an overturned bowl or added liquid, clean the filters, then cancel and restart the cycle. |
| 70 01 66DW24 | Too much water found when no cycle is running. | Check the water supply and that the drain line is not kinked, reset at the breaker, then touch Cancel. |
| 05 01 87DW24, with Call Service | A water flow problem. | Reset at the breaker and test. If it comes back, book service. |
| 60 01 48, 60 01 49 or 60 01 51With Call Service | A fault that needs a technician. | Book service. |
| Call Service, no codeAll Cove dishwashers | A fault, or a software loading error. | Note any code, press Cancel, then reset at the breaker. |
From Sub-Zero Group's own support pages and owner's guides, read in October 2026. Codes can differ by model: your owner's guide has the full list.
What needs fixing?
Pick the appliance and book online, or call 888-841-1175.
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