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The keypad of a built-in microwave in a tall cabinet, a small padlock symbol lit on the plain display, the mesh-window door closed on an empty glass turntable.

Thermador DEMO ON: the MicroDrawer is set to demonstrate, not heat

Thermador lists Demo Mode first among the reasons a MicroDrawer does not operate or does not heat.

(844) 393-5858

Mon–Sat, 8am–8pm

  • Mode, not a failure
  • No repair needed
  • Source: Thermador

Book a visit

Three short steps, about a minute.

or call (844) 393-5858

What DEMO ON
actually means.

Thermador lists Demo Mode first among the reasons a MicroDrawer does not operate or does not heat. It is reached by pressing the timer/settings key eleven times, and the drawer then behaves like a display model.

Thermador microwave display · also shown as DEMO OFF

What to do when DEMO ON shows on the microwave

Kind of codeMode, not a failure

Something was switched on rather than something wearing out: a child or control lock set by a long press on the wrong pad, after which no key answers, a demo or showroom setting that lights the display and turns the plate while nothing warms, a Sabbath setting that dims the panel and mutes the beeps, or a clock left blinking after an outage that holds the keypad until it is set. No part is needed; a key sequence from the manual switches it off again.

Usually leads toNo repair

Press timer/settings eleven times in a row; the display asks DEMO OFF? TOUCH START.

Shows up asWhat a Microwave Error Code Is Telling You

A microwave error code may be a letter and a number on the display, a lock or demo word, a row of dashes, or a beep with a blinking clock, and it can show while the microwave still heats or block every key until it is cleared.

MakeThermador

Thermador microwaves diagnosed in place, from a drawer that will not glide open to a built-in unit that runs with no heat.

SourceThermador MD24BS / MD30BS MicroDrawer Use and Care Guide

Thermador MicroDrawer MD24BS and MD30BS (Use and Care Guide 8001299202).

Before you book,
in this order.

Each step comes from Thermador's own guidance for DEMO ON on its microwaves. Follow it to the end: the last card says whether this is a visit.

01

Press timer/settings eleven times in a row; the display asks DEMO OFF? TOUCH START.

02

Confirm with Start (+30 secs) and look for DEMO OFF.

03

Heat water for a minute to confirm; if it stays cold, book a visit.

Cleared?

The code has gone and a mug of water heats again without a new part. If it comes back this week, or the food starts coming out cold in the middle, mention in the booking that it came back.

What not to do

DEMO ON is not a failure of the high-voltage parts and needs no repair. Food that stays cold with Demo confirmed off is a different case for a technician.

What you may
notice with it.

The microwave problems DEMO ON tends to arrive with. Answer these at the microwave before anyone is booked.

All problems

Before you call

What a Microwave Error Code Is Telling You

All 7 causes, cheapest first

It also comes with

Close view of the control panel beside the side-hinged door with a mesh window of a built-in stainless microwave in a tall kitchen cabinet, a few abstract lit segments on its small display, the microwave cavity dark behind the closed mesh window. Problem

What a Microwave Error Code Is Telling You

7 causes, cheapest first

No repair indicated

Nothing to repair.

Something was switched on rather than something wearing out: a child or control lock set by a long press on the wrong pad, after which no key answers, a demo or showroom setting that lights the display and turns the plate while nothing warms, a Sabbath setting that dims the panel and mutes the beeps, or a clock left blinking after an outage that holds the keypad until it is set. No part is needed; a key sequence from the manual switches it off again.

How to read what your microwave is telling you

Thermador
microwaves.

Thermador microwaves diagnosed in place, from a drawer that will not glide open to a built-in unit that runs with no heat.

Thermador microwave repair

More Thermador codes

EE11ERRORLOCK ONENJOY YOUR MICROWAVE TOUCH CLEAR

Mode, not a failure on other makes

Bertazzoni LOCKBosch LOCK ONCafé CONTROL LOCKEDDacor LOCK ONFisher & Paykel LOCKFulgor Milano LOCK ONGaggenau Demo modeGE Profile LOC
All 46 codes of this kind
A stainless microwave hood combination mounted under white shaker wall cabinets in a US kitchen, the microwave's side-hinged door closed with its dark mesh window, a plain glass bowl visible faintly on the glass turntable inside the microwave, the lamp on its underside glowing softly onto a cooking surface that is cropped and out of focus at the bottom edge. Thermador builds this

Microwave hood combination

The microwave that hangs from the wall cabinets above the burners, heating food in its cavity while its own fan, light and filters handle the steam and grease rising from the pans beneath it.

 A stainless built-in microwave set flush into a tall walnut cabinet at eye level in a US kitchen, a thin steel trim frame around the microwave, its door closed with a dark mesh window and a plain glass dish on the glass tray inside the microwave, soft daylight from the side. Thermador builds this

Built-in microwave

A microwave set into a tall cabinet or a wall of cabinetry at eye level, either a countertop body wrapped in a trim kit or a true built-in model, including speed and convection microwaves that brown as well as heat.

 A stainless microwave drawer built into a light oak kitchen island under a marble counter in a US home, the microwave drawer slid fully open toward the camera to show its flat interior with a plain covered glass casserole dish inside, the control strip along the top edge of the microwave blank or showing plain digits only. Thermador builds this

Microwave drawer

A microwave built under a counter or into a kitchen island that opens like a drawer at the touch of a key, with a motor and gears sliding its cavity out toward you.

In Thermador's own words

DEMO ON? HOLD START 3 SEC appears on the display.
Thermador MD24BS / MD30BS MicroDrawer Use and Care Guide Thermador MD24BS / MD30BS MicroDrawer Use and Care Guide Thermador MD24BS / MD30BS MicroDrawer Use and Care Guide

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Thermador MicroDrawer MD24BS and MD30BS (Use and Care Guide 8001299202).

Thermador DEMO ON microwave 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 warming plates of food at a built-in microwave in a bright kitchen
For the heart of your home.

Questions
about DEMO ON.

Can I clear DEMO ON myself?
Press timer/settings eleven times in a row; the display asks DEMO OFF? TOUCH START.
My new Thermador MicroDrawer will not heat. Is Demo mode the reason?
It is the first thing Thermador asks you to check. Look for DEMO ON and switch it off.
How many presses switch off Thermador Demo mode?
Eleven presses of timer/settings, then Start.
Can Thermador Demo mode turn on by accident?
It takes eleven presses and a confirming hold, so it is uncommon, but a reset or a showroom unit can leave it on.

Back to your everyday

Still showing DEMO ON?

Three details make the booking useful: the characters or beeps just as they appeared, every character of the model number, and whether a cup of water still warms up. With those, the technician arrives already halfway to the answer.

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