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The inside rear wall of an empty wine cooler with the racks pulled out, a small temperature probe clipped to the wall and its thin lead running into a grommet.

Sub-Zero EC08: the lower evaporator sensor is not reading

EC08 points at the lower evaporator thermistor, the coil probe for the lower section.

(844) 709-0727

Mon–Sat, 8am–8pm

  • Temperature sensors
  • Wine cooler thermostat and sensor repair
  • Source: Sub-Zero

Book a visit

Three short steps, about a minute.

or call (844) 709-0727

What EC08
actually means.

EC08 points at the lower evaporator thermistor, the coil probe for the lower section. The control uses it to manage that coil, so a bad reading can leave frost on the coil or make the lower section cool unevenly. Sub-Zero sets it after an open or short of 10 seconds or more, or repeated inconsistent readings.

Sub-Zero wine cooler display · also shown as EC 08, EC8

What to do when EC08 shows on the wine cooler

Kind 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 08

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 EC08 on its wine coolers. Follow it to the end: the last card says whether this is a visit.

01

Look at the back wall of the lower section for frost or ice.

02

Reset the breaker for 30 seconds and see whether EC08 returns.

03

If it does, book a visit and let the technician see any ice before it is cleared.

Still there?

It usually turns into wine cooler thermostat and sensor repair. Book with the code and the model number.

What not to do

EC08 does not report the lower air temperature; that probe reports as EC07. It is also not a sealed-system problem, which Sub-Zero shows as EC15.

What you may
notice with it.

The wine cooler problems EC08 tends to arrive with. Answer these at the wine cooler before anyone is booked.

All problems

Before you call

Wine Cooler Error Code

All 7 causes, cheapest first

It also comes with

The control panel of a built-in wine column in a kitchen, its small display glowing with abstract amber segments beside the top of the glass door, unlabeled bottles lying on wooden racks behind the glass below. Problem

Wine Cooler Error Code

7 causes, cheapest first

Where EC08 usually leads

Wine cooler thermostat and sensor repair.

Thermostat or zone temperature sensor · low to moderate.
Book a visit What the job involves

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 repair

More Sub-Zero codes

EC05EC06EC07EC10EC11EC12EC13EC15240 1 0940 1 4095 1 00
All 15 Sub-Zero codes

Temperature sensors on other makes

ASKO H1Fisher & Paykel F3Marvel EuPerlick P1FU-Line Zone T OpenVinotemp E1
All 17 codes of this kind
A stainless undercounter wine cooler with a tinted glass door built into white shaker cabinetry beneath a marble counter in a US home kitchen, rows of dark wine bottles lying on beech wood racks inside, softly lit. Sub-Zero builds this

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.

 A tall stainless built-in wine column with a full-height tinted glass door set flush into walnut cabinetry in a US home dining room, dozens of dark wine bottles resting on pale wood racks from floor to top, soft white interior light. Sub-Zero builds this

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.

 A stainless dual-zone wine cooler with a glass door in a US home bar, a slim divider shelf separating an upper compartment of dark red wine bottles and a lower compartment of pale green bottles, all, lying on oak racks under two soft lights. Sub-Zero builds this

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

Lower evaporator thermistor read open or shorted for 10 or more seconds, or repeatedly read inconsistent temperatures
Sub-Zero answer: Undercounter Wine (UW) error code EC 08 Sub-Zero answer: Classic wine storage (BW) error code EC 08 Sub-Zero answer: Undercounter Wine (UW) error code EC 08

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 EC08 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 areas

Tampa BayFL · 31 areas

OrlandoFL · 30 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

San Francisco Bay AreaCA · 74 areas

A couple choosing a bottle together from an undercounter wine cooler in a warm kitchen at dusk
For the heart of your home.

Questions
about EC08.

Can I clear EC08 myself?
Look at the back wall of the lower section for frost or ice. If it comes back, it needs a visit.
Does EC08 mean my Sub-Zero needs a new cooling system?
No. It names a probe on the coil, a much smaller repair than anything involving the sealed system.
Why is there water under my Sub-Zero after EC08 appeared?
Frost that built up on the lower coil can melt all at once when the unit finally clears it, and extra water can overflow the drain path. Wipe it up, stay clear of the outlet if water reaches it, and mention it when you book.
Is EC08 shown on single-zone Sub-Zero wine units?
Sub-Zero lists EC08 for its UW and BW wine lines, which cool upper and lower sections separately. The rating plate tells you which series you have.

Back to your everyday

Still showing EC08?

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.

Schedule a repair Call (844) 709-0727
(844) 709-0727 Schedule a repair