

Wine Guardian high humidity alarm: the cellar air is wetter than its limit
When relative humidity passes setting 5, the remote flashes the humidity number with the (!) symbol until it falls back below the setting.
Mon–Sat, 8am–8pm
- Humidity
- Cellar humidity control repair
- Source: Wine Guardian
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What Flashing humidity with (!)
actually means.
When relative humidity passes setting 5, the remote flashes the humidity number with the (!) symbol until it falls back below the setting. The unit removes moisture as it cools, so persistent high humidity usually means moist air is getting into the room, the unit is not running enough to dry it, or a humidifier is overshooting.
Wine Guardian wine cellar cooling unit display · also shown as High humidity alarm
What to do when Flashing humidity with (!) shows on the wine cellar cooling unitKind of codeHumidity
The unit or its hygrometer reads the cellar's air as too dry for the corks or too damp for the labels and the walls. Cooling pulls water out of the air, so a unit that runs long in a leaky room tends to dry it out, while a gap in the vapor barrier, damp ground or a clogged drain can push it the other way. A humidifier or humidity kit, where one is fitted, is checked along with the door seal and the room before a sensor is blamed.
Usually leads toCellar humidity control repair
Bringing a wine cellar back into its humidity window, roughly 50 to 70 percent, by fixing the humidifier, the fan settings, the drain or the room.
Shows up asWine Cellar Humidity Too High or Mold
Wine cellar mold starts as a musty smell, then white or green fuzz on the rack posts, spotted labels and dark specks in the corners, usually with a hygrometer reading well above 70 %.
MakeWine Guardian
Wine Guardian systems examined at the cellar, the ductwork and the equipment space when the air stops holding its temperature or its moisture.
SourceWine Guardian Remote Interface Operation Guide
Wine Guardian Remote Interface controller, used with through-the-wall, ducted, ducted split, ductless split and ceiling-mounted units; the Sentinel-series ducted manuals (Dec 2022) list the same alarms.
Before you book,
in this order.
Each step comes from Wine Guardian's own guidance for Flashing humidity with (!) on its wine cellar cooling units. Follow it to the end: the last card says whether this is a visit.
Check the door seal and any openings into the cellar, since a leak lets in moist air.
If a Wine Guardian humidifier is connected, check its setpoint (55% from the factory).
Look for condensation or mold on walls and racking; if you find it, book a visit to check the unit's run time and the room.
Still there?
It usually turns into cellar humidity control repair. Book with the code and the model number.
What not to do
The high humidity alarm is about the air in the cellar, not a code for a failed part. It clears on its own once humidity drops below the alarm setting.
What you may
notice with it.
The wine cellar cooling unit problems Flashing humidity with (!) tends to arrive with. Answer these at the wine cellar cooling unit before anyone is booked.
All problemsWhere Flashing humidity with (!) usually leads
Cellar humidity control repair.
Wine Guardian
wine cellar cooling units.
Wine Guardian systems examined at the cellar, the ductwork and the equipment space when the air stops holding its temperature or its moisture.
Wine Guardian wine cellar cooling unit repairMore Wine Guardian codes
Humidity 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 Wine Guardian's own words
Flashing humidity number along with (!) symbol will remain on screen until humidity falls below the High Humidity Alarm setpoint (Setting 5).
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Wine Guardian Remote Interface controller, used with through-the-wall, ducted, ducted split, ductless split and ceiling-mounted units; the Sentinel-series ducted manuals (Dec 2022) list the same alarms.
Wine Guardian Flashing humidity with (!) 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 Flashing humidity with (!).
Can I clear Flashing humidity with (!) myself?
Can a Wine Guardian lower humidity by itself?
What humidity should a Wine Guardian cellar hold?
Why does the humidity alarm show after I open the cellar door often?
Back to your everyday
Still showing Flashing humidity with (!)?
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.