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The display of a dual-zone wine cooler in a dim kitchen blinking a warm reading in its upper zone, the door closed on rows of unlabeled bottles.

Thermador HI: the under-counter Wine Reserve has warmed past its set limits

HI is the high-temperature alarm of Thermador's 24-inch under-counter Wine Reserve.

(844) 709-0727

Mon–Sat, 8am–8pm

  • Temperature and alarms
  • Wine cooler thermostat and sensor repair
  • Source: Thermador

Book a visit

Three short steps, about a minute.

or call (844) 709-0727

What HI
actually means.

HI is the high-temperature alarm of Thermador's 24-inch under-counter Wine Reserve. The control shows it when the air inside rises above the range it is set to hold. Thermador's list of causes is short: the door opened too often, the toe-kick vents blocked, a load of warm bottles, a hot room or sunlight, or a gasket that no longer seals.

Thermador wine cooler display · also shown as Hi-alarm

What to do when HI shows on the wine cooler

Kind of codeTemperature and alarms

The cooler read a zone well away from its setting and raised an alarm, sometimes showing the warmest figure it reached while the house was empty. The reason may be as small as a door left resting on a bottle neck or a long outage, or as serious as cooling that has stopped. Keep the glass door shut and feel a bottle in the middle of the rack before doing anything else; the alarm is a warning about the wine, not a diagnosis.

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.

MakeThermador

Thermador wine cooler service for cabinets that run cold, run warm or fog up behind the glass.

SourceThermador Wine Reserve Use & Care Guide, troubleshooting

Thermador T24UW925, T24UW915 and T24UW905 under-counter Wine Reserve units with the touch key control. The Freedom wine columns use a menu display and do not print HI.

Before you book,
in this order.

Each step comes from Thermador's own guidance for HI on its wine coolers. Follow it to the end: the last card says whether this is a visit.

01

Press ALARM once to silence the tone, then make sure the glass door closes firmly on both corners.

02

Clear anything in front of the toe-kick at the base; this is the only place the unit breathes.

03

If you just loaded many bottles, give it several hours with the door shut before judging.

04

If HI returns with the door shut and vents clear, move your most valuable bottles to the coolest dark spot in the house and book a visit.

Still there?

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

What not to do

HI does not name a failed part; a warm room or a door left ajar triggers it just as easily. A cabinet that stays warm with the door shut, the vents clear and no new bottles added points to a fan, a sensor or the sealed system, which is where we look next.

What you may
notice with it.

The wine cooler problems HI 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 HI usually leads

Wine cooler thermostat and sensor repair.

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

Thermador
wine coolers.

Thermador wine cooler service for cabinets that run cold, run warm or fog up behind the glass.

Thermador wine cooler repair

More Thermador codes

Door alarmSABDemo modeOFFLOCKSelf-test result

Temperature and alarms on other makes

ASKO Zone temperature is out of rangeBertazzoni Upper or lower zone too warmCafé High Temperature AlertDacor Abnormally high temperatureElectrolux H°Fulgor Milano Cellar too warmJennAir Over TempKitchenAid Over Temp
All 39 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. Thermador 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. Thermador 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. Thermador 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 Thermador's own words

Hi-alarm is activated (due to high temperature inside the appliance), HI is shown on the display LED.
Thermador Wine Reserve Use & Care Guide, troubleshooting Thermador Wine Reserve Use & Care Guide, remedy Thermador Wine Reserve Use & Care Guide, gasket cause

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Thermador T24UW925, T24UW915 and T24UW905 under-counter Wine Reserve units with the touch key control. The Freedom wine columns use a menu display and do not print HI.

Thermador HI 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 HI.

Can I clear HI myself?
Press ALARM once to silence the tone, then make sure the glass door closes firmly on both corners. If it comes back, it needs a visit.
Is my wine safe when a Thermador Wine Reserve shows HI?
A short rise of a few degrees does little harm to sealed bottles, but a cabinet that stays warm for days ages wine faster. Check the display after an hour with the door shut; if it is not falling, move the best bottles somewhere cool and dark.
Why does HI keep coming back after I silence it?
Pressing ALARM only stops the sound; the cause is still there. The usual repeat causes on this model are dust or an object at the toe-kick and a gasket that has flattened on the hinge side.
Does HI mean the upper or the lower zone is warm?
The manual does not say which zone set it off. Read both temperatures on the display: the one far above its setting is the zone to watch, and one warm zone with one normal zone suggests a zone fan or sensor rather than the compressor.

Back to your everyday

Still showing HI?

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