A digital temperature display on the lid rim of a white chest freezer in a garage, flashing a warm reading, with the lid closed and nobody in the frame.

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.

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Mon–Sat, 8am–8pm

  • Temperature and alarms
  • Freezer thermostat and temperature control repair
  • Source: Thermador

Book a visit

Three short steps, about a minute.

or call (844) 456-4651

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 freezer

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.

01

Close both drawers fully and check that nothing is catching on the slides or gasket.

02

Press ALARM once to silence the tone if you are loading the drawers.

03

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

Where ALARM light flashing blue usually leads

Freezer thermostat and temperature control repair.

Thermostat, temperature sensor or garage kit · low to moderate.

In Thermador's own words

When either drawer has been left open for 2 minutes or longer, an audible alarm sound is triggered
Thermador refrigerator freezer drawers use and care guide 9001700387, ALARM Thermador refrigerator freezer drawers use and care guide 9001700387, disengaging

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 areas
A parent and a child packing summer berries into bags beside an open upright freezer in a tidy garage
For the heart of your home.

Questions
about ALARM light flashing blue.

Can I clear ALARM light flashing blue myself?
Close both drawers fully and check that nothing is catching on the slides or gasket. If it comes back, it needs a visit.
The blue light over ALARM keeps flashing on my Thermador drawers, but they are shut. Why?
One drawer may not be closing all the way, often because of a package at the back or a slide out of line. If both are fully closed, the drawer sensing needs a technician.
Can I switch off the Thermador drawer alarm for a party?
Yes. Holding ALARM for three seconds turns the drawer-open alarm off, and holding it again turns it back on. Remember to re-enable it afterwards.
Does the Thermador drawer alarm tell me if the freezer drawer is too warm?
No, it only watches for an open drawer. Check the freezer drawer temperature on the display if food seems soft.

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.

(844) 456-4651 Schedule a repair