

Sub-Zero EC06: the upper evaporator sensor is not reading
EC06 names the upper evaporator thermistor.
Mon–Sat, 8am–8pm
- Temperature sensors
- Wine cooler thermostat and sensor repair
- Source: Sub-Zero
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What EC06
actually means.
EC06 names the upper evaporator thermistor. That probe sits on the cooling coil rather than in the air, and the control uses it to judge how the coil is doing, including when to let frost melt off. Sub-Zero triggers the code on an open or short lasting 10 seconds or more, or on repeated erratic readings.
Sub-Zero wine cooler display · also shown as EC 06, EC6
What to do when EC06 shows on the wine coolerKind of codeTemperature sensors
The control has lost a believable reading from one of its thermistors: the probe in a zone, the one on the cold plate or coil, or on some models the one watching the room. With no trustworthy number, the cabinet either chills the bottles far below cellar temperature or lets a zone drift warm. A sensor sitting in frost, pinched behind a rack or unplugged during a move is ruled out before a new one is ordered.
Usually leads toWine cooler thermostat and sensor repair
Testing and replacing the thermostat or the temperature sensors that tell a wine cooler when to cool, when the cabinet runs too cold, too warm or back and forth.
Shows up asWine Cooler Error Code
A wine cooler error code appears as letters and digits on the display, a flashing temperature, dashes where a number should be or a blinking symbol, sometimes with an alarm tone and sometimes while the cabinet stays perfectly cool.
MakeSub-Zero
Sub-Zero wine coolers repaired in place, with the collection kept closed and dark until the visit.
SourceSub-Zero answer: Undercounter Wine (UW) error code EC 06
Undercounter Wine (UW) models and Classic (formerly Built-In, BW) wine storage, which show two-digit EC codes. Designer wine columns and Designer undercounter units report the same kind of problem with three-part codes instead.
Before you book,
in this order.
Each step comes from Sub-Zero's own guidance for EC06 on its wine coolers. Follow it to the end: the last card says whether this is a visit.
Look at the back wall of the upper section for frost or ice; a coil that is not clearing itself is a sign this probe matters right now.
Reset the breaker for 30 seconds and see whether EC06 comes back.
If it returns, or ice is building, book a visit and avoid chipping at any ice on the coil.
Still there?
It usually turns into wine cooler thermostat and sensor repair. Book with the code and the model number.
What not to do
EC06 is not about the air temperature the display shows, which comes from a different probe. A problem with the air probe in the upper section shows as EC05.
What you may
notice with it.
The wine cooler problems EC06 tends to arrive with. Answer these at the wine cooler before anyone is booked.
All problemsWhere EC06 usually leads
Wine cooler thermostat and sensor repair.
Sub-Zero
wine coolers.
Sub-Zero wine coolers repaired in place, with the collection kept closed and dark until the visit.
Sub-Zero wine cooler repairMore Sub-Zero codes
All 15 Sub-Zero codesTemperature sensors on other makes
All 17 codes of this kind
Undercounter wine cooler
A wine cooler about the height of a base cabinet, built in under the counter of a kitchen, a bar or a butler's pantry, with a glass door, sliding racks and a vented toe grille at the floor.
Wine column
A full-height built-in wine cabinet, 18 to 30 inches wide, set flush into tall cabinetry or paired with a matching column, with a glass or panel door and dozens to well over a hundred bottles inside.
Dual-zone wine cooler
A wine cooler with two separately set compartments, upper and lower or side by side, so reds and whites or a storage zone and a serving zone each keep their own temperature.
In Sub-Zero's own words
Upper evaporator thermistor read open or shorted for 10 or more seconds, or repeatedly read erratic temperatures
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Undercounter Wine (UW) models and Classic (formerly Built-In, BW) wine storage, which show two-digit EC codes. Designer wine columns and Designer undercounter units report the same kind of problem with three-part codes instead.
Sub-Zero EC06 wine cooler repair,
where we come out.
The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.
All service areasTampa BayFL · 31 areas
Miami / South FloridaFL · 47 areas
New York MetroNY · 75 areas
HoustonTX · 36 areas
ChicagoIL · 50 areas
Los AngelesCA · 95 areas
San DiegoCA · 31 areas
Questions
about EC06.
Can I clear EC06 myself?
Why would EC06 cause ice on the back wall of my Sub-Zero?
What is the difference between EC05 and EC06?
Is it safe to keep wine in the unit while EC06 is showing?
Back to your everyday
Still showing EC06?
When you book, copy the code or the blink pattern as the display shows it, add the whole model number, and say whether the bottles still feel cool — a code gives the technician a head start.