mypros+
Error code reference

Bosch Dryer Error Code E:2080

Compressor inverter

Bosch codesBosch dryer codes

Compressor inverter - asymmetry error (4-digit equivalent of E:21).

First step from the service manual

Check cables and connectors.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for E:2080.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What E:2080 means on a Bosch dryer

Error code E:2080 on a Bosch dryer indicates an asymmetry error within the compressor inverter circuit. This code is the 4-digit equivalent of E:21 and relates specifically to the heat pump compressor's inverter drive system. The inverter is responsible for controlling the variable-speed compressor motor by converting DC power into precisely controlled AC output across three phases. An asymmetry error means the inverter has detected an imbalance between those output phases, which can disrupt or prevent proper compressor operation.

Asymmetry errors typically arise from faults in the electrical connections between the inverter board and the compressor, or from internal failures within the inverter module itself. Damaged, loose, or corroded wiring harnesses between these components are among the most frequent triggers, which is why the first diagnostic step is to inspect all cables and connectors in the compressor inverter circuit. A failed or degraded compressor winding can also present as a phase imbalance, as can a faulty inverter board that is generating uneven output.

Because this fault involves high-voltage inverter circuitry, proper diagnosis requires caution and appropriate electrical testing equipment. Technicians should inspect connectors for corrosion, pin retraction, or heat damage before moving on to resistance checks across compressor terminals or voltage output testing at the inverter. Resolving E:2080 generally requires identifying whether the root cause lies in the wiring, the inverter board, or the compressor itself.

Source: manufacturer service documentation.

Common causes of E:2080

  1. 01

    Loose or damaged wiring connectors

    Wiring / connection

    Connectors between the inverter board and compressor can become loose, corroded, or damaged over time, causing signal asymmetry. Visually inspect all connectors in the compressor inverter circuit for corrosion, bent pins, or poor seating.

  2. 02

    Faulty inverter board

    Part replacement

    The inverter board itself may have failed internally, producing uneven phase output to the compressor motor. If wiring checks out normal, the inverter board is the next component to evaluate.

  3. 03

    Degraded or failed compressor windings

    Part replacement

    A compressor with failed or imbalanced internal windings will present as a phase asymmetry fault at the inverter. Resistance checks across the compressor terminals can help identify an open or shorted winding.

  4. 04

    Chafed or broken wiring harness

    Wiring / connection

    Wiring routed near moving parts or sharp edges can develop breaks or shorts over time, disrupting the balanced signal between the inverter and compressor. A careful inspection of the full harness length is needed to locate damage.

See the test procedure for each cause

Frequently asked questions about E:2080

What does E:2080 mean on a Bosch dryer?
E:2080 is an asymmetry error for the compressor inverter and is the 4-digit equivalent of fault code E:21. It means the inverter has detected an imbalance in the electrical signals being sent to the heat pump compressor. This can prevent the compressor from running correctly, affecting the dryer's ability to generate heat. The first step in diagnosis is checking the cables and connectors in the inverter circuit.
Can I fix E:2080 on my Bosch dryer myself?
Some causes of E:2080, such as a loose connector or a visibly damaged wire, can be addressed by a confident DIYer with basic electrical knowledge. However, the compressor inverter circuit involves high-voltage components, so caution is essential. Diagnosing whether the inverter board or compressor itself has failed typically requires specialized testing equipment and is best left to a qualified technician.
Is it safe to use my Bosch dryer when E:2080 is displayed?
It is not recommended to continue operating the dryer while E:2080 is active. An inverter asymmetry fault can indicate compromised electrical components that may worsen with continued use. Running the dryer in this condition could cause further damage to the inverter board or compressor, increasing repair costs.
Will resetting my Bosch dryer clear the E:2080 error?
A power reset may temporarily clear the error display, but if the underlying cause such as a faulty connector, damaged wiring, or failed component is still present, the code will return. Resetting without addressing the root cause is not a reliable fix for E:2080.
How much does it cost to repair a Bosch dryer with error code E:2080?
Repair costs vary depending on what component has failed. If the issue is only a damaged wire or connector, costs may be relatively low, potentially in the range of $75 to $150 for a service call. If the inverter board requires replacement, costs typically range from $200 to $450 or more depending on parts and labor. A failed compressor is the most expensive scenario and could approach or exceed the value of an older unit.

Related Bosch dryer codes

All Bosch dryer codes
View all 94 Bosch dryer codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass