--- title: "WhisperKOOL E7: the keypad and circuit board lost contact" description: "What E7 means on WhisperKOOL E7: the keypad and circuit board lost contacts, what to check before booking, and when it is not a failure at all." url: "https://winecellarrepair.center/error-codes/whisperkool-e7/" --- # WhisperKOOL E7: the keypad and circuit board lost contact E7 is a communication code on WhisperKOOL's digital controller. ## What E7 actually means. E7 is a communication code on WhisperKOOL's digital controller. The keypad you see in or outside the cellar talks to the circuit board in the unit through a display cable, and E7 appears when that link has been silent for a full minute. The cable, its plugs at both ends and the keypad itself are the suspects. WhisperKOOL wine cellar cooling unit display What to do when E7 shows on the wine cellar cooling unit ### Kind of code Power and controller The unit saw its supply dip, surge or drop out, or the controller has lost contact with the board it drives. The cause is as often a shared circuit, a tripped GFCI outlet, a loose connection or a storm outage as the unit itself. A breaker that will not stay on or a scorched smell means switching the circuit off at the panel, standing dry and away from the unit, and keeping the cellar door closed until the technician arrives. ### Usually leads to Wine cellar cooling diagnostic visit A visit that reads the cellar, the room the heat goes to and the cooling unit itself, and ends with one named cause, whether it is a part or the room. ### Shows up as Cellar Cooling Controller Display Blank A cellar cooling controller display blank shows nothing at all, flickers, shows half a number, or ignores its buttons, sometimes while the unit keeps cooling and sometimes while it stops. ### Make WhisperKOOL WhisperKOOL systems serviced where they are installed, whether the cellar is warming, the coil is frosting or the unit never rests. ### Source WhisperKOOL Platinum Split 4000/8000 owner's manual (01/2022) Digital controller on Platinum Split, Ceiling Mount, Extreme tiR and Phantom models. ## Before you book, in this order. Each step comes from WhisperKOOL's own guidance for E7 on its wine cellar cooling units. Follow it to the end: the last card says whether this is a visit. 01 Check that the display cable is plugged in at the keypad and, if you can reach it safely, at the unit. 02 Look along the cable for a kink, a staple through it or a frayed section. 03 If E7 persists with the cable intact, book a visit to test the cable, keypad and board. ### Still there? It usually turns into [wine cellar cooling diagnostic visit](https://winecellarrepair.center/services/diagnostic-visit/). Book with the code and the model number. ### What not to do E7 does not describe the cooling system; the unit may still be running. It only means the screen cannot reach the board to show or change settings. ## What you may notice with it. The wine cellar cooling unit problems E7 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 Controller Display Blank](https://winecellarrepair.center/problems/cellar-controller-display-blank/) [All 4 causes, cheapest first](https://winecellarrepair.center/problems/cellar-controller-display-blank/) It also comes with - [**Cellar Cooling Unit Error Code**](https://winecellarrepair.center/problems/cellar-cooling-unit-error-code/) Problem ### Cellar Cooling Controller Display Blank 4 causes, cheapest first Where E7 usually leads ## Wine cellar cooling diagnostic visit. Book a visit [What the job involves](https://winecellarrepair.center/services/diagnostic-visit/) ## 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 repair](https://winecellarrepair.center/brands/whisperkool/) More WhisperKOOL codes [E1](https://winecellarrepair.center/error-codes/whisperkool-e1/) [E2](https://winecellarrepair.center/error-codes/whisperkool-e2/) [E3](https://winecellarrepair.center/error-codes/whisperkool-e3/) [E10](https://winecellarrepair.center/error-codes/whisperkool-e10/) [EA](https://winecellarrepair.center/error-codes/whisperkool-ea/) [AH1](https://winecellarrepair.center/error-codes/whisperkool-ah1/) [AL1](https://winecellarrepair.center/error-codes/whisperkool-al1/) [Ad2](https://winecellarrepair.center/error-codes/whisperkool-ad2/) [Ad3](https://winecellarrepair.center/error-codes/whisperkool-ad3/) [COH](https://winecellarrepair.center/error-codes/whisperkool-coh/) [dEF](https://winecellarrepair.center/error-codes/whisperkool-def/) Power and controller on other makes [CellarCool E7](https://winecellarrepair.center/error-codes/cellarcool-e7/) [Wine Guardian !4](https://winecellarrepair.center/error-codes/wine-guardian-alarm-4/) [Wine-Mate CA](https://winecellarrepair.center/error-codes/wine-mate-ca/) [All 6 codes of this kind](https://winecellarrepair.center/error-codes/#family-power) WhisperKOOL 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. WhisperKOOL 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. WhisperKOOL 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 WhisperKOOL's own words > No communication between keypad and circuit board for 60 seconds [WhisperKOOL Platinum Split 4000/8000 owner's manual (01/2022)](https://whisperkool.com/wp-content/uploads/2022/01/WK-Platinum_Split_4000-8000_OM_NO_UV_220HE_012422.pdf) [WhisperKOOL Platinum Split 4000/8000 owner's manual (01/2022)](https://whisperkool.com/wp-content/uploads/2022/01/WK-Platinum_Split_4000-8000_OM_NO_UV_220HE_012422.pdf) [WhisperKOOL Extreme tiR owner's manual (04/2023)](https://whisperkool.com/wp-content/uploads/2023/08/WK-Extreme-tiR-OM-042523.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Digital controller on Platinum Split, Ceiling Mount, Extreme tiR and Phantom models. ## WhisperKOOL E7 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 that the display cable is plugged in at the keypad and, if you can reach it safely, at the unit. If it comes back, it needs a visit. ### Is my WhisperKOOL still cooling with E7 on the screen? It may be. E7 is about the keypad link, so check for air moving from the unit and a steady cellar temperature. ### Can a long display cable cause E7 on a WhisperKOOL? A long run gives more chances for damage, such as a kink or a staple. WhisperKOOL's own check is the cable's condition at both ends and along its length. ### Does SC PRO show E7? E7 is listed for the digital controller used on Platinum Split, Ceiling Mount, Extreme tiR and Phantom models, not in the SC PRO alarm table. --- **[Read on the site: WhisperKOOL E7: the keypad and circuit board lost contact](https://winecellarrepair.center/error-codes/whisperkool-e7/)** **[Book a visit with WineCellarRepair.center](https://winecellarrepair.center/schedule/)**