Sub-Zero 40 1 40: a Designer wine zone has run too long
On Designer wine storage, 40 1 40 means excessive runtime in zone 1: the system has cooled that zone for longer than the control allows without getting the result it expects.
Mon–Sat, 8am–8pm
- Compressor and cooling module
- Wine cooler compressor and sealed system repair
- Source: Sub-Zero
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What 40 1 40
actually means.
On Designer wine storage, 40 1 40 means excessive runtime in zone 1: the system has cooled that zone for longer than the control allows without getting the result it expects. 40 2 40 and 40 3 40 are the same condition in zones 2 and 3. It often comes before a zone starts to warm.
Sub-Zero wine cooler display · also shown as 40 2 40, 40 3 40
What to do when 40 1 40 shows on the wine coolerKind of codeCompressor and cooling module
The part that makes the cold is not keeping up. On a compressor cooler it may fail to start, start and cut out, or run on without bringing the zones down; a start relay is the cheap answer ruled out first, while a seized compressor or lost refrigerant is a sealed system job where age weighs heavily. On a thermoelectric cooler the module or its heat sink fans have weakened, and a warm room makes it worse. Keep the bottles cool while it is diagnosed.
Usually leads toWine cooler compressor and sealed system repair
Getting a compressor-cooled wine cooler holding cellar temperature again, from the start relay and overload that fail first to a leak or a restriction in the sealed tubing.
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: Designer Wine (IW) error 40 1 40
Designer (formerly Integrated, IW) wine storage. The middle digit is the zone number.
Before you book,
in this order.
Each step comes from Sub-Zero's own guidance for 40 1 40 on its wine coolers. Follow it to the end: the last card says whether this is a visit.
Check that the door is fully closed and the grille at the bottom is not blocked.
Reset the breaker for 30 seconds and retest.
If the code returns, book a visit; clean the condenser beforehand only if it is easy to reach and the power is off.
Still there?
It usually turns into wine cooler compressor and sealed system repair. Book with the code and the model number.
What not to do
40 1 40 does not mean the wine is warm yet; a zone far from its setting is 40 1 09. It is also not a fan code; Designer fan codes start with 35.
What you may
notice with it.
The wine cooler problems 40 1 40 tends to arrive with. Answer these at the wine cooler before anyone is booked.
All problems
Where 40 1 40 usually leads
Wine cooler compressor and sealed system 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 codesCompressor and cooling module on other makes
All 4 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
Zone 1 excessive runtime
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Designer (formerly Integrated, IW) wine storage. The middle digit is the zone number.
Sub-Zero 40 1 40 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 40 1 40.
Can I clear 40 1 40 myself?
What makes a Designer wine zone run too long?
How often should the condenser on a Designer wine unit be cleaned?
Is 40 1 40 urgent?
Back to your everyday
Still showing 40 1 40?
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.