Independent technical referenceOfficial site
  • Appliances
  • Refrigerators

alarm

Whirlpool fridge freezer alarm: door ajar or high temperature

Verified with sources3 sourcesReviewed Oct 18, 2026
Technician coming? See the 2 steps they must show you
Stainless steel fridge freezer
Matti BlumeCC BY-SA 4.0Image source

Risk level

Medium

Proceed carefully and stop if the check is unclear.

Urgency

High

Quick answer

An audible alarm and flashing indicator light on a Whirlpool refrigerator or fridge freezer warns that a door has been open for 2 to 5 minutes or internal temperatures stayed too warm for over 1.5 hours. Press the Alarm button, close all doors fully, check levelling, and inspect food.

Safety first

Stop and check this first

  • Never bypass door switches or open internal panels covering the fan, electronics, or sealed refrigerant system; book an authorised technician if the alarm does not clear.
  • Whenever the over-temperature alarm activates on your Whirlpool fridge freezer, inspect the food in the freezer compartment to ensure it has not spoiled or thawed unsafely.

Safe checks you can perform

  • Press the Alarm button and ensure all doors and drawers close fully
  • Check that the refrigerator is level and the gaskets are clean
  • Allow cool-down time and cycle power if the alarm persists

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Test the door switch, hinge alignment, and temperature sensors
  • Do not attempt this professional task: Inspect the evaporator fan, defrost system, and sealed cooling circuit

What a technician must be able to justify

Technician visit

These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.

These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.

  1. Test the door switch, hinge alignment, and temperature sensors

    What they doCheck electrical continuity and mechanical actuation of the door switches, inspect door hinges and gaskets, and verify the thermistor resistance values for both compartments.

    They must show youthe door switch continuity test and live thermistor readings from the control board.

    In writingthe switch and sensor test results, any part replaced or hinge adjusted, and verified cabinet temperatures.

  2. Inspect the evaporator fan, defrost system, and sealed cooling circuit

    What they doTest evaporator fan airflow, defrost heater operation, control board outputs, and compressor / sealed refrigerant system performance.

    They must show youthe restored temperature pull-down below 48 °F (9 °C) and 15 °F (-9 °C) and any failed component replaced.

    In writingthe root cause of the cooling loss, Whirlpool part numbers installed, and repair warranty details.

Before accepting a part or repair

Nothing has been shown yet. Do not accept a part swap based on the code alone.

Follow these steps

Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.

  1. Press the Alarm button and ensure all doors and drawers close fully

    No special tools

    Who:
    user
    How:
    Press the Stop Alarm / Alarm button (or any control panel button) to silence the chime, then check that no bins, shelves, or food packages are stopping the doors or freezer drawer from closing completely against the door switch.
    Result that matters:
    The audible beep silences and, if temperatures are already back to normal or the door was ajar, the flashing indicator resets.
    If If the alarm light turns off and stays off with the doors closed, no further action is needed.
    If If the Door Ajar icon remains lit when the doors are shut, check cabinet levelling and gasket contact.
    Evidence to keep:
    Photo of the control panel alarm light and the door switch contact area.

    Evidence: Whirlpool Guía diaria de referencia frigorífico-congelador 400011498949 · Door Alarm Light - Refrigerator · Temperature Alarm - Refrigerator

  2. Check that the refrigerator is level and the gaskets are clean

    No special tools

    Who:
    user
    How:
    Verify that the Whirlpool refrigerator is level from front to back and side to side, and wipe the door gaskets so they seal evenly and let the door actuate the switch properly.
    Result that matters:
    The doors align squarely with the cabinet frame and make positive contact with the door switch.
    If Keep the doors closed so the compartments can maintain their set cooling temperatures.
    If If the Over Temperature alarm is active, inspect stored food and keep the doors shut while the cabinet cools down.
    Evidence to keep:
    Photo of the door alignment and gasket seal around the perimeter.

    Evidence: Whirlpool Guía diaria de referencia frigorífico-congelador 400011498949 · Door Alarm Light - Refrigerator

  3. Allow cool-down time and cycle power if the alarm persists

    No special tools

    Who:
    user
    How:
    Check the condition of frozen food, keep the doors closed to let the unit recover (allow 4 to 6 hours on initial startup), and if Door Ajar or alarm issues continue, cycle power by unplugging the refrigerator for a few minutes and plugging it back in.
    Result that matters:
    The control electronics reset and the audio alarm shuts off automatically once the compartments drop back below 9 °C (48 °F) and -9 °C (15 °F).
    If Once cool, press the Alarm button to clear the flashing over-temperature indicator light.
    If If the temperature does not return to normal after waiting and cycling power, schedule Whirlpool service with your rating plate service code.
    Evidence to keep:
    Measured compartment temperatures and a photo of the rating plate service number.

    Evidence: Whirlpool Guía diaria de referencia frigorífico-congelador 400011498949 · Door Alarm Light - Refrigerator · Temperature Alarm - Refrigerator

Still not solved

If the error persists, stop here. See what the technician must do and show you.

Where this code applies

A code is meaningful only inside the right product and version context.

Primary scope

System
Appliances
Brand
Whirlpool
Product type
Refrigerators

Known code variants

  • alarm
  • alarm off
  • alarma
  • alarma de temperatura frigorífico Bosch
  • alarma de temperatura frigorífico Siemens
  • alarma puerta abierta Whirlpool
  • alarma temperatura frigorifico Whirlpool
  • Bosch combi alarma congelador
  • Bosch freezer temperature alarm
  • Bosch fridge beeping alarm
  • Bosch fridge freezer alarm
  • Bosch frigorífico alarm
  • Bosch KGN alarm off flashing
  • Bosch KGN alarm parpadea
  • congelador Bosch pita alarm
  • congelador Siemens pita alarm
  • Door Ajar Alarm Whirlpool refrigerator
  • Door Alarm Light Whirlpool
  • luz de alarma parpadeando Whirlpool
  • Over Temperature alarm Whirlpool
  • Siemens freezer temperature alarm
  • Siemens fridge beeping alarm
  • Siemens fridge freezer alarm
  • Siemens frigorífico alarm
  • Siemens iQ300 alarma congelador
  • Siemens iQ300 freezer alarm
  • Siemens KG39N alarm flashing
  • Siemens KG39N alarm parpadea
  • Stop Alarm Whirlpool
  • temperature alarm
  • Temperature Alarm Whirlpool

What it means

On Whirlpool refrigerators and fridge freezers, a blinking alarm light with an audible beep warns of either a Door Ajar condition (when a refrigerator door or freezer drawer is left open for 2 to 5 minutes with cooling on) or an Over Temperature condition (when the refrigerator stays above 48 °F / 9 °C or the freezer stays above 15 °F / -9 °C for more than 1.5 hours, or during the initial 4 to 6 hour cool-down after plugging in). An active alarm by itself never proves that a component is faulty: once normal temperature returns, the audio alarm stops automatically while the indicator light keeps flashing until you press the Alarm button to acknowledge the event.

Warnings and stop conditions

  • Higheditorial warning

    Never bypass door switches or open internal panels covering the fan, electronics, or sealed refrigerant system; book an authorised technician if the alarm does not clear.

    Evidence: Whirlpool Guía diaria de referencia frigorífico-congelador 400011498949 · Door Alarm Light - Refrigerator

  • Mediumsource verified

    Whenever the over-temperature alarm activates on your Whirlpool fridge freezer, inspect the food in the freezer compartment to ensure it has not spoiled or thawed unsafely.

    Evidence: Whirlpool Guía diaria de referencia frigorífico-congelador 400011498949 · Temperature Alarm - Refrigerator

Symptoms and causes

Probable causes · in order

  • Door or freezer drawer left open for 2 to 5 minutes or switch not engagedCommon

    Leaving a door ajar, blocking it with food packages or bins, or an unlevel cabinet prevents proper contact with the door switch and sounds the alarm every 2 minutes.

    Evidence: Whirlpool Guía diaria de referencia frigorífico-congelador 400011498949 · Door Alarm Light - Refrigerator

  • Over-temperature condition after initial startup, power cut, or warm food loadCommon

    During the first 4 to 6 hours after plugging in, following a power outage, or after loading warm groceries, cabinet temperatures stay above threshold for over 1.5 hours and trigger the alarm.

    Evidence: Whirlpool Guía diaria de referencia frigorífico-congelador 400011498949 · Temperature Alarm - Refrigerator

  • Worn door gasket, faulty door switch, or cooling system problemLess common

    If all doors close tightly and the refrigerator fails to return to normal temperature after several hours, a seal, sensor, or cooling fault requires service.

    Evidence: Whirlpool Guía diaria de referencia frigorífico-congelador 400011498949 · Door Alarm Light - Refrigerator · Temperature Alarm - Refrigerator

Virtual technician

Does alarm still appear after these checks?

Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.

Sources and technical references

  1. 2

    Door Alarm Light - Refrigerator

    Whirlpool · 2026 · official_doc

  2. 3

    Temperature Alarm - Refrigerator

    Whirlpool · 2026 · official_doc

Sources: Whirlpool Guía diaria de referencia frigorífico-congelador 400011498949 · Door Alarm Light - Refrigerator · Temperature Alarm - Refrigeratorreviewed 2026-10-18 · verified

Was this entry useful?