--- title: "Thermador coffee machine: LEAVE DEVICE TO COOL" description: "What LEAVE DEVICE TO COOL means on Thermador coffee machine: LEAVE DEVICE TO COOLs, what to check before booking, and when it is not a failure at all." url: "https://coffeemachinerepair.center/error-codes/thermador-leave-device-to-cool/" --- # Thermador coffee machine: LEAVE DEVICE TO COOL Thermador's built-in reads its own heat and stops brewing when it gets too hot, which can happen after a long string of milk drinks or hot water draws. ## What LEAVE DEVICE TO COOL actually means. Thermador's built-in reads its own heat and stops brewing when it gets too hot, which can happen after a long string of milk drinks or hot water draws. The answer on Thermador's troubleshooting page is simple: off for half an hour. Thermador coffee machine display · also shown as Leave device to cool What to do when LEAVE DEVICE TO COOL shows on the coffee machine ### Kind of code Heating and temperature The thermoblock or boiler did not reach its set heat in time, overshot it, or its sensor reported something the board did not believe. Scale lining the heater is the usual start, followed by a tired heating element, a sensor, or a thermal cutout that opened to protect the machine. A descale may bring the heat back; a cutout that trips again, steam where there should be none or a breaker that goes means the power stays off. ### Usually leads to Coffee machine heater repair Diagnosing and replacing the thermoblock or boiler that heats water for coffee and steam, with its sensor and thermal cutout. ### Shows up as What a Coffee Machine Error Code or Warning Symbol Means A coffee machine error code may show as a short string of letters and numbers, a flashing symbol for water, grounds or the brew unit, a short sentence on a text display, or a machine that stops with one light blinking. ### Make Thermador Thermador built-in coffee machines are diagnosed in the cabinet they sit in, starting with how the owner fills, cleans and empties the unit day to day. ### Source Thermador Coffee Machines – Troubleshooting page Thermador's troubleshooting page prints the message in capitals; the TCM24PS Use and Care Guide prints it as Leave device to cool. ## Before you book, in this order. Each step comes from Thermador's own guidance for LEAVE DEVICE TO COOL on its coffee machines. Follow it to the end: the last card says whether this is a visit. 01 Switch the coffee machine off and keep its door shut for thirty minutes. 02 Make sure the ventilation openings in the cabinet front are not covered by trim, towels or a closed pocket door. 03 Switch on and try one drink; if the message appears on a cold machine, book a visit. ### Still there? It usually turns into [coffee machine heater repair](https://coffeemachinerepair.center/services/coffee-machine-heater-repair/). Book with the code and the model number. ### What not to do The longer SWITCH OFF WITH POWER SWITCH message can mean a dirty brewing unit as well as heat. A coffee machine that makes lukewarm drinks without any message is a heating complaint, not this one. ## What you may notice with it. The coffee machine problems LEAVE DEVICE TO COOL tends to arrive with. Answer these at the coffee machine before anyone is booked. [All problems](https://coffeemachinerepair.center/problems/) Before you call ### [What a Coffee Machine Error Code or Warning Symbol Means](https://coffeemachinerepair.center/problems/coffee-machine-error-code/) [All 7 causes, cheapest first](https://coffeemachinerepair.center/problems/coffee-machine-error-code/) It also comes with - [**No Coffee Coming Out of the Coffee Machine**](https://coffeemachinerepair.center/problems/coffee-machine-no-coffee-coming-out/) - [**Coffee From the Coffee Machine Not Hot Enough**](https://coffeemachinerepair.center/problems/coffee-machine-coffee-not-hot/) Problem ### What a Coffee Machine Error Code or Warning Symbol Means 7 causes, cheapest first Where LEAVE DEVICE TO COOL usually leads ## Coffee machine heater repair. **Thermoblock or boiler, heat sensor and thermal cutout · moderate to highest.** Book a visit [What the job involves](https://coffeemachinerepair.center/services/coffee-machine-heater-repair/) ## Thermador coffee machines. Thermador built-in coffee machines are diagnosed in the cabinet they sit in, starting with how the owner fills, cleans and empties the unit day to day. [Thermador coffee machine repair](https://coffeemachinerepair.center/brands/thermador/) More Thermador codes [E0510](https://coffeemachinerepair.center/error-codes/thermador-e0510/) [SWITCH OFF WITH POWER SWITCH AND THEN BACK ON AFTER 30 SEC!](https://coffeemachinerepair.center/error-codes/thermador-switch-off-with-power-switch/) [REFILL WITH STILL WATER or REMOVE FILTER](https://coffeemachinerepair.center/error-codes/thermador-refill-with-still-water/) [FILL BEAN CONTAINER](https://coffeemachinerepair.center/error-codes/thermador-fill-bean-container/) [MILK CONTAINER CONNECTED?](https://coffeemachinerepair.center/error-codes/thermador-milk-container-connected/) [EMPTY DRIP TRAYS](https://coffeemachinerepair.center/error-codes/thermador-empty-drip-trays/) [INSERT DRIP TRAYS](https://coffeemachinerepair.center/error-codes/thermador-insert-drip-trays/) [Clean brewing unit](https://coffeemachinerepair.center/error-codes/thermador-clean-brewing-unit/) [OVERVOLTAGE OR UNDERVOLTAGE](https://coffeemachinerepair.center/error-codes/thermador-overvoltage-or-undervoltage/) [REPLACE WATER FILTER](https://coffeemachinerepair.center/error-codes/thermador-replace-water-filter/) [12:00](https://coffeemachinerepair.center/error-codes/thermador-12-00/) [Descaling program is overdue. Device will shortly be locked.](https://coffeemachinerepair.center/error-codes/thermador-descaling-program-overdue/) Heating and temperature on other makes [Bosch Please allow machine to cool.](https://coffeemachinerepair.center/error-codes/bosch-please-allow-machine-to-cool/) [Gaggenau Let appliance cool down](https://coffeemachinerepair.center/error-codes/gaggenau-let-appliance-cool-down/) [Jura ERROR 2](https://coffeemachinerepair.center/error-codes/jura-error-2/) [Wolf HEATING UP PLEASE WAIT](https://coffeemachinerepair.center/error-codes/wolf-heating-up-please-wait/) [All 7 codes of this kind](https://coffeemachinerepair.center/error-codes/#family-heating) Thermador builds this ### Built-in coffee system The coffee machine set flush into a tall kitchen cabinet, filled from a water tank behind its front, grinding beans and brewing each cup on its own before sliding out on rails for service. Thermador builds this ### Plumbed coffee system The built-in coffee machine connected to the house water supply, filling itself through an inlet valve and sometimes draining its rinse water to a line of its own, so nobody ever lifts out a tank. ## In Thermador's own words > If the display shows LEAVE DEVICE TO COOL, switch off the coffee machine for 30 minutes and let it cool. [Thermador Coffee Machines – Troubleshooting page](https://www.thermador.com/us/support/coffee-machines/troubleshooting) [Thermador TCM24PS Built-in Coffee Machine Use and Care Guide, Simple troubleshooting](https://media3.bsh-group.com/Documents/8001250411_A.pdf) Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Thermador's troubleshooting page prints the message in capitals; the TCM24PS Use and Care Guide prints it as Leave device to cool. ## Thermador LEAVE DEVICE TO COOL coffee machine 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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Switch the coffee machine off and keep its door shut for thirty minutes. If it comes back, it needs a visit. ### Why does my Thermador overheat only during holiday parties? Back-to-back drinks, especially with milk froth, keep the heater working without a break. Pausing when the message appears is all Thermador asks. ### Can installing the Thermador above a warming drawer make it run hot? Heat and poor airflow in the niche can add up. A technician can compare the installation with Thermador's cut-out and ventilation drawings on site. ### My Thermador says to cool down first thing in the morning. What does that mean? A machine that has sat overnight cannot really be hot, so the temperature reading is the suspect. That is a sensor or board check for a visit. --- **[Read on the site: Thermador coffee machine: LEAVE DEVICE TO COOL](https://coffeemachinerepair.center/error-codes/thermador-leave-device-to-cool/)** **[Book a visit with CoffeeMachineRepair.center](https://coffeemachinerepair.center/schedule/)**