

KoolR AL: the cellar passed 72°F and the unit shut down
AL is KoolR's one alarm and its upper safety limit.
Mon–Sat, 8am–8pm
- Temperature and alarms
- Cellar cooling load and room check
- Source: KoolR
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Three short steps, about a minute.
or call (844) 398-5977
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What AL
actually means.
AL is KoolR's one alarm and its upper safety limit. When the room passes 72°F, the unit shuts down, beeps and blinks AL in turn with the temperature. The alarm is ignored for a cool-down period after plug-in or a reset, and the unit restarts and goes back to cycling once the room falls below 72°F.
KoolR wine cellar cooling unit display
What to do when AL 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 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.
MakeKoolR
KoolR units checked on site when the cellar sits too warm or too cold, cycles hard or leaves a puddle under the grille.
SourceKoolR controller instructions
KoolR Piccolo, Magnum, KoolR and KoolR Plus through-the-wall units. KoolR's controller sheet and alarm page give a 4-hour cool-down window after start-up or a reset, while the Use & Care Guide gives 12 hours.
Before you book,
in this order.
Each step comes from KoolR's own guidance for AL on its wine cellar cooling units. Follow it to the end: the last card says whether this is a visit.
Keep the cellar door closed, and move the most valuable bottles if the room is well above 70°F.
Check the warm side: KoolR needs the neighboring room to be interior, air-conditioned and between 65°F and 80°F, with nothing blocking the grille.
Unplug the unit, vacuum the condenser at the back and the evaporator on the cold side, then plug it back in after 10 minutes, as KoolR's alarm page describes.
If AL returns, KoolR's advice is to disconnect power during an alarm, so leave it unplugged and 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
AL on a KoolR is not a sensor warning or a settings reminder; the unit has actually stopped cooling. It is also held off during the first hours after plug-in, so a warm room right after installation will not show it yet.
What you may
notice with it.
The wine cellar cooling unit problems AL tends to arrive with. Answer these at the wine cellar cooling unit before anyone is booked.
All problemsWhere AL usually leads
Cellar cooling load and room check.
KoolR
wine cellar cooling units.
KoolR units checked on site when the cellar sits too warm or too cold, cycles hard or leaves a puddle under the grille.
KoolR wine cellar cooling unit repairTemperature and alarms on other makes
In KoolR's own words
If the temperature exceeds 72º F the unit will shut down, a sound warning will start
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. KoolR Piccolo, Magnum, KoolR and KoolR Plus through-the-wall units. KoolR's controller sheet and alarm page give a 4-hour cool-down window after start-up or a reset, while the Use & Care Guide gives 12 hours.
KoolR AL 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 AL.
Can I clear AL myself?
Why did my KoolR restart on its own after AL?
Why didn't AL appear when my new KoolR could not cool the room?
What usually trips AL on a KoolR?
Back to your everyday
Still showing AL?
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.