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A plain white cup under the spouts of a stainless built-in coffee machine holding a short espresso with no steam rising from it, the coffee machine's display plain and unlit.

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.

(844) 551-4777

Mon–Sat, 8am–8pm

  • Heating and temperature
  • Coffee machine heater repair
  • Source: Thermador

Book a visit

Three short steps, about a minute.

or call (844) 551-4777

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 codeHeating 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 toCoffee 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 asWhat 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.

MakeThermador

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.

SourceThermador 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. 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

Before you call

What a Coffee Machine Error Code or Warning Symbol Means

All 7 causes, cheapest first

It also comes with

Close view of the dark display and touch keys on the front of a stainless built-in coffee machine set in a tall kitchen cabinet, one abstract symbol glowing and a few plain lit segments, a white cup under the spouts of the coffee machine at the lower edge and a few coffee beans on the shelf. 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

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

More Thermador codes

E0510SWITCH OFF WITH POWER SWITCH AND THEN BACK ON AFTER 30 SEC!REFILL WITH STILL WATER or REMOVE FILTERFILL BEAN CONTAINERMILK CONTAINER CONNECTED?EMPTY DRIP TRAYSINSERT DRIP TRAYSClean brewing unitOVERVOLTAGE OR UNDERVOLTAGEREPLACE WATER FILTER12:00Descaling program is overdue. Device will shortly be locked.

Heating and temperature on other makes

Bosch Please allow machine to cool.Gaggenau Let appliance cool downJura ERROR 2Wolf HEATING UP PLEASE WAIT
All 7 codes of this kind
A stainless built-in coffee machine set flush in a tall wooden kitchen cabinet at eye level in a US home kitchen, a plain white cup standing under the coffee machine's twin spouts with a thin stream of espresso falling into it, a small dish of coffee beans on the ledge beside it, the coffee machine display dark or showing only plain digits, the cabinet doors around it closed. 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.

 A built-in stainless coffee machine drawn a little forward out of a tall kitchen cabinet on its rails in a US home kitchen, a thin braided water line and a small shutoff valve visible behind the coffee machine, a plain white cup under the coffee machine's spouts and a scoop of coffee beans on the counter below. 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 Thermador TCM24PS Built-in Coffee Machine Use and Care Guide, Simple troubleshooting

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.

All service areas

Tampa BayFL · 31 areas

OrlandoFL · 30 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

San Francisco Bay AreaCA · 74 areas

A family sharing morning coffee at a built-in coffee machine in a bright kitchen.
For the heart of your home.

Questions
about LEAVE DEVICE TO COOL.

Can I clear LEAVE DEVICE TO COOL myself?
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.

Back to your everyday

Still showing LEAVE DEVICE TO COOL?

Three things make the booking useful: the message or number exactly as the display showed it, the full model number from the plate, and whether the machine still grinds and pours at all. Send those and the likely part can be looked up before the van leaves.

Schedule a repair Call (844) 551-4777
(844) 551-4777 Schedule a repair