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A wine cellar controller on a stone wall showing a warm two-digit reading with an alarm symbol lit, the cooling unit's grille above it and racks of unlabeled bottles to one side.

Wine-Mate LO: low temperature alarm on the older display

LO is the low temperature counterpart of HI on Wine-Mate's earlier controller.

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Mon–Sat, 8am–8pm

  • Temperature and alarms
  • Cellar cooling load and room check
  • Source: Wine-Mate

Book a visit

Three short steps, about a minute.

or call (844) 398-5977

What LO
actually means.

LO is the low temperature counterpart of HI on Wine-Mate's earlier controller. It flashes when the cellar reads colder than the set limit and resets itself once the temperature comes back within it.

Wine-Mate wine cellar cooling unit display

What to do when LO shows on the wine cellar cooling unit

Kind of codeTemperature and alarms

The controller saw the cellar go past a high or low limit and raised an alarm, sometimes holding the worst reading it logged while the house was empty. The reason can be as small as the cellar door left ajar after a tasting or a long outage, a room gaining heat from new lights or a sunny glass wall, or as serious as cooling that has stopped. Keep the door shut and read a thermometer on a middle rack before touching anything; the alarm is a warning about the collection, not yet a diagnosis.

Usually leads toCellar cooling load and room check

Measuring the cellar as the cooling unit sees it: insulation, vapor barrier, door, glass and the heat load, to show whether the unit can ever keep up.

Shows up asCellar Cooling Unit Error Code

A cellar cooling unit error code appears as letters or digits on the controller, a flashing reading, a blinking light on the unit, or an alarm tone, sometimes while the cellar still holds its temperature.

MakeWine-Mate

Wine-Mate cooling units repaired on site when they will not start, ice over, trip a breaker or leave the walls wet.

SourceWine-Mate cooling systems digital display instructions (older VINO models)

Older Wine-Mate units with the earlier digital display, sold under VINO- model names such as VINO-1500CD, VINO-1500 HZD and VINO-2500SS. Current WM- units use the five-button controller instead.

Before you book,
in this order.

Each step comes from Wine-Mate's own guidance for LO on its wine cellar cooling units. Follow it to the end: the last card says whether this is a visit.

01

Press the set button for one second to see the setpoint and confirm it has not been set too low.

02

Keep in mind that this older manual says Wine-Mate units are not for use below 50°F, and a cold basement can pull the room down with the unit idle.

03

Check the cellar with a separate thermometer to see whether the reading is real.

04

If the unit keeps running while the room is cold, book a visit.

Still there?

It usually turns into cellar cooling load and room check. Book with the code and the model number.

What not to do

LO on this display is a low temperature warning, not a sign of a broken sensor. Current Wine-Mate controllers show the same warning as LA.

What you may
notice with it.

The wine cellar cooling unit problems LO tends to arrive with. Answer these at the wine cellar cooling unit before anyone is booked.

All problems

Before you call

Cellar Cooling Unit Error Code

All 8 causes, cheapest first

It also comes with

The small controller panel on the cellar side of a through-the-wall cooling unit, its display glowing with abstract amber segments beside the slotted supply grille, the top row of a wooden wine rack with unlabeled bottles just below. Problem

Cellar Cooling Unit Error Code

8 causes, cheapest first

Where LO usually leads

Cellar cooling load and room check.

Cooling load and room survey · lowest.
Book a visit What the job involves

Wine-Mate
wine cellar cooling units.

Wine-Mate cooling units repaired on site when they will not start, ice over, trip a breaker or leave the walls wet.

Wine-Mate wine cellar cooling unit repair

More Wine-Mate codes

P1HALACAHIdFPOF

Temperature and alarms on other makes

Breezaire E1CellarCool AH1CellarPro HAKoolR ALWhisperKOOL AH1Wine Guardian Flashing temperature with (!)
All 14 codes of this kind
A wine cellar cooling unit set into the upper part of a stone wall in a US home wine cellar, its cellar-side grille flush with the wall above dark wood racks full of wine bottles, cool soft lighting. Wine-Mate builds this

Through-the-wall cellar cooling unit

A self-contained box set into an opening in the cellar wall: its cold face blows into the wine room, and its warm face breathes out into the room next door.

 A wine cellar in a US home seen from inside, a white rectangular supply grille for its cooling unit set in the wood-paneled ceiling above tall dark racks of wine bottles, a matching return grille low on the far wall, soft even lighting. Wine-Mate builds this

Ducted cellar cooling unit

A self-contained cooling unit placed outside the cellar, in a mechanical room, attic or basement, that sends chilled air in and takes return air back through insulated ducts.

 A slim white split-system wine cellar evaporator unit mounted high on a plastered wall of a US home wine cellar above curved wooden racks of wine bottles without labels, insulated copper lines entering the wall beside it, warm low lighting. Wine-Mate builds this

Split-system cellar cooling

An evaporator inside or beside the cellar and a condensing unit outside or in another room, joined by an insulated copper line set and charged on site.

In Wine-Mate's own words

LO FLASHING- LOW TEMPERATURE ALARM- The unit has read a low tempature which is lower than the set point
Wine-Mate cooling systems digital display instructions (older VINO models) Wine-Mate cooling systems digital display instructions (older VINO models) Wine-Mate cooling systems digital display instructions (older VINO models)

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Older Wine-Mate units with the earlier digital display, sold under VINO- model names such as VINO-1500CD, VINO-1500 HZD and VINO-2500SS. Current WM- units use the five-button controller instead.

Wine-Mate LO wine cellar cooling unit 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 lifting a bottle from a lit stone-walled wine cellar, the cooling unit's grille high on the far wall
For the heart of your home.

Questions
about LO.

Can I clear LO myself?
Press the set button for one second to see the setpoint and confirm it has not been set too low. If it comes back, it needs a visit.
Does LO mean my older Wine-Mate is chilling the wine too far?
It means the reading is below your set limit, which may be only a few degrees under the setpoint. Check the room with a thermometer before assuming anything is near freezing.
Why does LO show up in winter?
When the space around the cellar gets cold, the room can fall below the limit even with the compressor off. The unit only cools, so the answer is warmth around or in the cellar rather than a change at the unit.
Will LO clear by itself on the older Wine-Mate?
Yes. The older manual says the alarm resets automatically when the temperature returns within the set limit.

Back to your everyday

Still showing LO?

When you book, type the code or the blink count as the controller shows it, add the full model number, and say what the thermometer in the cellar reads now — that gives the technician a head start.

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(844) 398-5977 Schedule a repair