

Thermador undercounter freezer drawer beeping with a blue light: a drawer is open
On Thermador's under-counter refrigerator-freezer drawers, a flashing blue LED above the ALARM button and an audible tone mean a drawer has been open for two minutes or longer.
Mon–Sat, 8am–8pm
- Temperature and alarms
- Freezer thermostat and temperature control repair
- Source: Thermador
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What ALARM light flashing blue
actually means.
On Thermador's under-counter refrigerator-freezer drawers, a flashing blue LED above the ALARM button and an audible tone mean a drawer has been open for two minutes or longer. Pressing ALARM once silences it for now, and holding ALARM for three seconds turns the drawer-open alarm off or back on. The alarm does not work during Sabbath mode.
Thermador freezer display · also shown as blue LED above ALARM, drawer open alarm
What to do when ALARM light flashing blue shows on the freezerKind of codeTemperature and alarms
The freezer measured a cabinet warmer than it should be and said so, sometimes with the highest temperature it reached while nobody was looking. The cause can be as simple as a door left ajar or a long power outage, or as serious as a compressor that stopped. Keep the door or the lid shut and check whether the food is still hard before anything else; the alarm is a warning about the food, not a diagnosis.
Usually leads toFreezer thermostat and temperature control repair
Repairing the dial thermostat or the sensor and control that decide when a freezer cools, so it stops running without end or quitting too early.
Shows up asFreezer Alarm Beeping
A freezer alarm beeping keeps sounding, from a short chirp that repeats to a steady tone, often with a flashing light or a temperature on the display that is higher than it should be.
MakeThermador
Thermador freezers repaired on site when they run warm, frost over or keep sounding off.
SourceThermador refrigerator freezer drawers use and care guide 9001700387, ALARM
Thermador under-counter refrigerator-freezer drawers T24UC925DS, T24UC915DS and T24UC905DP.
Before you book,
in this order.
Each step comes from Thermador's own guidance for ALARM light flashing blue on its freezers. Follow it to the end: the last card says whether this is a visit.
Close both drawers fully and check that nothing is catching on the slides or gasket.
Press ALARM once to silence the tone if you are loading the drawers.
Book a visit if the light flashes with both drawers closed, so the drawer switches and slides can be checked.
Still there?
It usually turns into freezer thermostat and temperature control repair. Book with the code and the model number.
What not to do
The blue light is a drawer-open reminder, not a temperature warning or a cooling failure. A freezer drawer that is warm with both drawers closed needs a separate check.
What you may
notice with it.
The freezer problems ALARM light flashing blue tends to arrive with. Answer these at the freezer before anyone is booked.
All problems
Freezer Alarm Beeping
5 causes, cheapest first
Where ALARM light flashing blue usually leads
Freezer thermostat and temperature control repair.
Thermador
freezers.
Thermador freezers repaired on site when they run warm, frost over or keep sounding off.
Thermador freezer repairMore Thermador codes
Temperature and alarms on other makes
Freezer column
A built-in, full-height freezer that stands alone in the cabinetry, often beside a matching fresh-food column, with a stainless or panel-ready door and an electronic control.
Undercounter freezer
A 15- to 24-inch freezer or a pair of freezer drawers built in under a counter, in a kitchen island, a home bar, a basement or a pool house, venting from the front.
In Thermador's own words
When either drawer has been left open for 2 minutes or longer, an audible alarm sound is triggered
Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Thermador under-counter refrigerator-freezer drawers T24UC925DS, T24UC915DS and T24UC905DP.
Thermador ALARM light flashing blue freezer 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 areasTampa BayFL · 31 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
Questions
about ALARM light flashing blue.
Can I clear ALARM light flashing blue myself?
The blue light over ALARM keeps flashing on my Thermador drawers, but they are shut. Why?
Can I switch off the Thermador drawer alarm for a party?
Does the Thermador drawer alarm tell me if the freezer drawer is too warm?
Back to your everyday
Still showing ALARM light flashing blue?
Book with the code or the alarm pattern written exactly as the freezer shows it, the full model number, and whether the food is still frozen hard — when there is a code, that is where the diagnosis starts.