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Error Code

Liebherr BT021 Error Code

The BT021 display is interpreted from the documentation for the matching controller platform and model series.

VERIFIED

Error code BT021
Appliance Freezer

BT021 needs a technician on site

BT021 points to a refrigerator-compartment evaporator sensor fault. — an internal part that can’t be checked or fixed safely from the outside. A restart may hide it for a while, but the cause stays. Our technician tests it on site and confirms the fault before any part is replaced.

BT021 indicates a refrigerator-compartment evaporator sensor fault on the platforms that document this token.

Owners seeing BT021 note the display and measure the affected zone separately.

Seal contact is verified first when BT021 appears on the panel.

One power cycle is tried if BT021 may be transient.

Ongoing BT021 with poor temperatures leads to testing the documented part.

Controller response for the indicator is checked against series notes. This applies to BT021.

Sensor testing for the token follows after basic checks. This applies to BT021.

Model confirmation precedes lookup of the platform procedure. This applies to BT021.

Controller response for the indicator is checked against series notes. This applies to BT021.

Sensor testing for the token follows after basic checks. This applies to BT021.

Model confirmation precedes lookup of the platform procedure. This applies to BT021.

Sensor testing for the token follows after basic checks. This applies to BT021.

The token is recorded with zone readings before documentation is opened. This applies to BT021.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Record for BT021 includes the model number and current readings.

Frequently asked questions

Model compatibility: Liebherr reuses codes across series and model years, so BT021 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.

Plain language

What this code means

a refrigerator-compartment evaporator sensor fault

Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.

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