--- title: "Zephyr LO: the Presrv cabinet has dropped below 28°F" description: "What LO means on Zephyr LO: the Presrv cabinet has dropped below 28°Fs, what to check before booking, and when it is not a failure at all." url: "https://winecoolerrepair.center/error-codes/zephyr-lo/" --- # Zephyr LO: the Presrv cabinet has dropped below 28°F LO appears on a Presrv wine cooler when the interior falls below 28°F, and the alarm follows after 15 minutes. ## What LO actually means. LO appears on a Presrv wine cooler when the interior falls below 28°F, and the alarm follows after 15 minutes. The lowest setting on these models is 38°F, so LO means the cabinet is cooling well past its setting. Zephyr wine cooler display What to do when LO shows on the wine cooler ### Kind of code Temperature 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 to Wine 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 as Wine 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. ### Make Zephyr Zephyr wine coolers repaired in the kitchen or bar, from a warm zone to a glass door that keeps fogging. ### Source Zephyr Presrv Pro PRPW24C02CG use, care and installation guide Presrv PRW15C01CG, PRW24C02CG, Pro PRPW24C02CG and the full-size PRW24F01CG and PRW24F02CG wine models, all with the same wording. The full-size wine and beverage model uses 25°F for its beverage side. ## Before you book, in this order. Each step comes from Zephyr's own guidance for LO on its wine coolers. Follow it to the end: the last card says whether this is a visit. 01 Check the set temperature on each zone; the range is 38°F to 65°F. 02 Look for bottles frozen against the back wall or corks that have started to rise. 03 Keep the door shut and check again after an hour to see whether the reading recovers. 04 If LO returns, book a visit; a cabinet that runs below freezing on a normal setting needs its sensor and control tested. ### Still there? It usually turns into [wine cooler thermostat and sensor repair](https://winecoolerrepair.center/services/wine-cooler-thermostat-and-sensor-repair/). Book with the code and the model number. ### What not to do LO is not a low setting: settings stop at 38°F, and LO starts ten degrees below that. It is also not frost on the back wall, which Zephyr treats as a humidity and defrost matter without a code. ## What you may notice with it. The wine cooler problems LO tends to arrive with. Answer these at the wine cooler before anyone is booked. [All problems](https://winecoolerrepair.center/problems/) Before you call ### [Wine Cooler Error Code](https://winecoolerrepair.center/problems/wine-cooler-error-code/) [All 7 causes, cheapest first](https://winecoolerrepair.center/problems/wine-cooler-error-code/) It also comes with - [**Wine Cooler Too Cold for the Wine**](https://winecoolerrepair.center/problems/wine-cooler-too-cold/) - [**Frost or Ice on the Back Wall of a Wine Cooler**](https://winecoolerrepair.center/problems/frost-or-ice-on-the-back-wall/) Problem ### Wine Cooler Error Code 7 causes, cheapest first Where LO usually leads ## Wine cooler thermostat and sensor repair. **Thermostat or zone temperature sensor · low to moderate.** Book a visit [What the job involves](https://winecoolerrepair.center/services/wine-cooler-thermostat-and-sensor-repair/) ## Zephyr wine coolers. Zephyr wine coolers repaired in the kitchen or bar, from a warm zone to a glass door that keeps fogging. [Zephyr wine cooler repair](https://winecoolerrepair.center/brands/zephyr/) More Zephyr codes [HI](https://winecoolerrepair.center/error-codes/zephyr-hi/) [00](https://winecoolerrepair.center/error-codes/zephyr-00/) [R blinking](https://winecoolerrepair.center/error-codes/zephyr-r-blinking/) [CF](https://winecoolerrepair.center/error-codes/zephyr-cf/) [LF](https://winecoolerrepair.center/error-codes/zephyr-lf/) Temperature and alarms on other makes [ASKO Zone temperature is out of range](https://winecoolerrepair.center/error-codes/asko-zone-temperature-out-of-range/) [Bertazzoni Upper or lower zone too warm](https://winecoolerrepair.center/error-codes/bertazzoni-zone-too-warm/) [Café High Temperature Alert](https://winecoolerrepair.center/error-codes/cafe-high-temperature-alert/) [Dacor Abnormally high temperature](https://winecoolerrepair.center/error-codes/dacor-abnormally-high-temperature/) [Electrolux H°](https://winecoolerrepair.center/error-codes/electrolux-h/) [Fulgor Milano Cellar too warm](https://winecoolerrepair.center/error-codes/fulgor-milano-cellar-too-warm/) [JennAir Over Temp](https://winecoolerrepair.center/error-codes/jennair-over-temp/) [KitchenAid Over Temp](https://winecoolerrepair.center/error-codes/kitchenaid-over-temp/) [All 38 codes of this kind](https://winecoolerrepair.center/error-codes/#family-temperature) Zephyr 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. Zephyr 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. Zephyr builds this ### Freestanding wine cooler A wine cooler that stands on its own in a dining room, a den or a basement, cooled either by a compressor or by a thermoelectric module, and vented at the back or the sides. ## In Zephyr's own words > If the inner temperature is lower than 28ºF (-2ºC), “LO” is shown on the temperature display panel [Zephyr Presrv Pro PRPW24C02CG use, care and installation guide](https://docs.zephyronline.com/docs/manuals/PRPW24C02CG_manual.pdf) [Zephyr Presrv Pro PRPW24C02CG use, care and installation guide](https://docs.zephyronline.com/docs/manuals/PRPW24C02CG_manual.pdf) [Zephyr Presrv Pro PRPW24C02CG use, care and installation guide](https://docs.zephyronline.com/docs/manuals/PRPW24C02CG_manual.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Presrv PRW15C01CG, PRW24C02CG, Pro PRPW24C02CG and the full-size PRW24F01CG and PRW24F02CG wine models, all with the same wording. The full-size wine and beverage model uses 25°F for its beverage side. ## Zephyr LO 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. 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Check the set temperature on each zone; the range is 38°F to 65°F. If it comes back, it needs a visit. ### Why does my Zephyr show LO when I set it to 45°F? Because the cabinet is colder than 28°F whatever the setting says. That points to the sensor or control, not to the number you chose. ### How fast does the Zephyr LO alarm sound? After 15 minutes below 28°F, much sooner than the one-hour delay for HI. ### Is the LO limit different on the full-size Zephyr combination model? On the full-size wine and beverage model, the beverage side alarms below 25°F, while the wine side keeps the 28°F limit. --- **[Read on the site: Zephyr LO: the Presrv cabinet has dropped below 28°F](https://winecoolerrepair.center/error-codes/zephyr-lo/)** **[Book a visit with WineCoolerRepair.center](https://winecoolerrepair.center/schedule/)**