--- title: "Wine-Mate P1: the temperature probe is not reading" description: "What P1 means on Wine-Mate P1: the temperature probe is not readings, what to check before booking, and when it is not a failure at all." url: "https://winecellarrepair.center/error-codes/wine-mate-p1/" --- # Wine-Mate P1: the temperature probe is not reading P1 means the probe that tells the controller how warm the cellar is has stopped reading properly. ## What P1 actually means. P1 means the probe that tells the controller how warm the cellar is has stopped reading properly. Rather than stop, the controller cycles the compressor on a timer set by its Con and CoF parameters (15 minutes on and 30 off by default in the HZD and SSD manuals), and the alarm clears a few seconds after the probe reads normally again. Wine-Mate wine cellar cooling unit display What to do when P1 shows on the wine cellar cooling unit ### Kind of code Sensors and probes The controller has lost a sensible reading from one of its probes: the one sampling the cellar air, the one on the evaporator coil, or on a remote probe the lead that runs out to a rack. With no number it can trust, the unit may chill the room well below 55°F, stop and start every few minutes, or run on without end. A probe unplugged during a rack install, pinched behind a board or sitting in a draft from the door is ruled out before a new one is ordered. ### Usually leads to Cellar controller and sensor repair Getting the controller, its display and its probes to read the cellar truthfully and call for cooling at the right time. ### Shows up as Cellar 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. ### Make Wine-Mate Wine-Mate cooling units repaired on site when they will not start, ice over, trip a breaker or leave the walls wet. ### Source Wine-Mate HZD self-contained cooling system manual Current Wine-Mate five-button controller, as printed in the HZD, HZD-DE, 4510-series HZD, HTD, low-profile and SSH, SSD and SSO split-system manuals. Wi-Fi touchscreen and SMART controllers print no display codes. ## Before you book, in this order. Each step comes from Wine-Mate's own guidance for P1 on its wine cellar cooling units. Follow it to the end: the last card says whether this is a visit. 01 Check the cellar with a separate thermometer, since on the timer the room can drift away from your setpoint. 02 Wine-Mate asks for the probe connections to be checked before the probe is replaced; with the power off, look for a loose plug or a damaged cord you can reach safely. 03 If a bottle probe is fitted, make sure it is still in its bottle and not pinched in a door or rack. 04 If P1 stays, book a visit to test the probe and the controller input. ### Still there? It usually turns into [cellar controller and sensor repair](https://winecellarrepair.center/services/cellar-controller-and-sensor-repair/). Book with the code and the model number. ### What not to do P1 does not mean the cellar is out of temperature; that is what HA and LA report. It does not stop cooling either, because the timer keeps the compressor cycling. ## What you may notice with it. The wine cellar cooling unit problems P1 tends to arrive with. Answer these at the wine cellar cooling unit before anyone is booked. [All problems](https://winecellarrepair.center/problems/) Before you call ### [Cellar Cooling Unit Error Code](https://winecellarrepair.center/problems/cellar-cooling-unit-error-code/) [All 8 causes, cheapest first](https://winecellarrepair.center/problems/cellar-cooling-unit-error-code/) It also comes with - [**Wine Cellar Too Warm**](https://winecellarrepair.center/problems/cellar-too-warm/) - [**Wine Cellar Too Cold**](https://winecellarrepair.center/problems/cellar-too-cold/) - [**Cellar Cooling Unit Short Cycling**](https://winecellarrepair.center/problems/cellar-unit-short-cycling/) Problem ### Cellar Cooling Unit Error Code 8 causes, cheapest first Where P1 usually leads ## Cellar controller and sensor repair. **Air or coil probe, display, transformer or control board · moderate.** Book a visit [What the job involves](https://winecellarrepair.center/services/cellar-controller-and-sensor-repair/) ## 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](https://winecellarrepair.center/brands/wine-mate/) More Wine-Mate codes [HA](https://winecellarrepair.center/error-codes/wine-mate-ha/) [LA](https://winecellarrepair.center/error-codes/wine-mate-la/) [CA](https://winecellarrepair.center/error-codes/wine-mate-ca/) [HI](https://winecellarrepair.center/error-codes/wine-mate-hi/) [LO](https://winecellarrepair.center/error-codes/wine-mate-lo/) [dF](https://winecellarrepair.center/error-codes/wine-mate-df/) [POF](https://winecellarrepair.center/error-codes/wine-mate-pof/) Sensors and probes on other makes [Breezaire Er](https://winecellarrepair.center/error-codes/breezaire-er/) [CellarCool E1](https://winecellarrepair.center/error-codes/cellarcool-e1/) [CellarPro P1](https://winecellarrepair.center/error-codes/cellarpro-p1/) [WhisperKOOL E1](https://winecellarrepair.center/error-codes/whisperkool-e1/) [Wine Guardian !3](https://winecellarrepair.center/error-codes/wine-guardian-alarm-3/) [All 12 codes of this kind](https://winecellarrepair.center/error-codes/#family-sensor) 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. 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. 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 > P1 Temperature probe faulty Compressor switching to Con and CoF [Wine-Mate HZD self-contained cooling system manual](https://cdn.shopify.com/s/files/1/0555/0676/3891/t/7/assets/description_image_wm1500_8500hzd_owners_manual_v4.pdf?v=1643942325) [Wine-Mate HZD self-contained cooling system manual](https://cdn.shopify.com/s/files/1/0555/0676/3891/t/7/assets/description_image_wm1500_8500hzd_owners_manual_v4.pdf?v=1643942325) [Wine-Mate HZD self-contained cooling system manual](https://cdn.shopify.com/s/files/1/0555/0676/3891/t/7/assets/description_image_wm1500_8500hzd_owners_manual_v4.pdf?v=1643942325) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Current Wine-Mate five-button controller, as printed in the HZD, HZD-DE, 4510-series HZD, HTD, low-profile and SSH, SSD and SSO split-system manuals. Wi-Fi touchscreen and SMART controllers print no display codes. ## Wine-Mate P1 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. 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Check the cellar with a separate thermometer, since on the timer the room can drift away from your setpoint. If it comes back, it needs a visit. ### Is my Wine-Mate still cooling with P1 on the display? Yes, on a fixed schedule rather than by temperature. Whether that holds the room near 55°F depends on the season and the load, so keep an eye on a separate thermometer. ### Why does P1 come and go on my Wine-Mate? The alarm starts a few seconds after the probe misreads and clears a few seconds after it recovers. A pattern of on and off points toward a connection that makes and breaks rather than a probe that has died. ### Can I change the timer a Wine-Mate uses during P1? The on and off times are the Con and CoF parameters in the settings menu. Change them only to keep the room steady until the probe is repaired, and write down the original values first. --- **[Read on the site: Wine-Mate P1: the temperature probe is not reading](https://winecellarrepair.center/error-codes/wine-mate-p1/)** **[Book a visit with WineCellarRepair.center](https://winecellarrepair.center/schedule/)**