WhisperKOOL AL1: the wine is colder than the low alarm limit
AL1 is the low temperature alarm on the bottle probe, set at the same spread as AH1 for each model (4°F on most current manuals, 8°F on some).
Mon–Sat, 8am–8pm
- Temperature and alarms
- Cellar cooling load and room check
- Source: WhisperKOOL
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What AL1
actually means.
AL1 is the low temperature alarm on the bottle probe, set at the same spread as AH1 for each model (4°F on most current manuals, 8°F on some). It usually means the unit has kept cooling longer than it should, or that the cellar sits in a cold space. WhisperKOOL coolers do not heat, so a cold room has to be warmed from outside the unit.
WhisperKOOL wine cellar cooling unit display · also shown as “AL1”
What to do when AL1 shows on the wine cellar cooling unitKind 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 asWine Cellar Too Cold
A wine cellar too cold feels like stepping into a walk-in: the thermometer sits in the 40s, bottles come out beaded with water, and the unit keeps running long after the room should have been satisfied.
MakeWhisperKOOL
WhisperKOOL systems serviced where they are installed, whether the cellar is warming, the coil is frosting or the unit never rests.
SourceWhisperKOOL Platinum Split 4000/8000 owner's manual (01/2022)
Shown by both WhisperKOOL controller families: the digital controller on Platinum Split, Ceiling Mount, Extreme tiR and Phantom, and the SC PRO and Slimline LS through-the-wall controller.
Before you book,
in this order.
Each step comes from WhisperKOOL's own guidance for AL1 on its wine cellar cooling units. Follow it to the end: the last card says whether this is a visit.
Check whether the snowflake is lit; if the unit is cooling while the wine is already cold, turn it off and book a visit.
If the cellar is cold because of the season, add gentle heat to the room until the wine returns to the setpoint.
Compare the probe with a thermometer in a bottle of water; a calibration offset may be needed.
Still there?
It usually turns into cellar cooling load and room check. Book with the code and the model number.
What not to do
AL1 is not a refrigerant problem. If the compressor is off and the room is simply cold, the unit is working as designed.
What you may
notice with it.
The wine cellar cooling unit problems AL1 tends to arrive with. Answer these at the wine cellar cooling unit before anyone is booked.
All problems
Wine Cellar Too Cold
4 causes, cheapest first
Where AL1 usually leads
Cellar cooling load and room check.
WhisperKOOL
wine cellar cooling units.
WhisperKOOL systems serviced where they are installed, whether the cellar is warming, the coil is frosting or the unit never rests.
WhisperKOOL wine cellar cooling unit repairMore WhisperKOOL codes
Temperature and alarms on other makes
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.
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.
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 WhisperKOOL's own words
The bottle probe is sensing a temperature that is 8°F below the setpoint
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Shown by both WhisperKOOL controller families: the digital controller on Platinum Split, Ceiling Mount, Extreme tiR and Phantom, and the SC PRO and Slimline LS through-the-wall controller.
WhisperKOOL AL1 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 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 AL1.
Can I clear AL1 myself?
Can a WhisperKOOL warm my cellar if AL1 appears?
Why would a WhisperKOOL keep cooling past its setpoint?
Does AL1 harm the wine in a WhisperKOOL cellar?
Back to your everyday
Still showing AL1?
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.