Black & Decker Air Conditioner Error E2

⚡ Quick Answer: The BLACK+DECKER air conditioner E2 error indicates a malfunction in the temperature sensor, which leads to erratic temperature readings and inconsist... ✅ DIY Fixable

What Does Error E2 Mean?

The BLACK+DECKER air conditioner E2 error indicates a malfunction in the temperature sensor, which leads to erratic temperature readings and inconsistent cooling performance. This error may also relate to issues with the water level or float sensor. Common symptoms include the E2 code displayed on the digital panel, the unit stopping cooling operations, and potential compressor startup failures.

Common Symptoms:

  • E2 displayed on unit’s digital panel
  • Unit stops cooling operation
  • Often accompanied by shutdown or failed compressor start

Possible Causes

  • Temperature sensor malfunction (medium)
  • Water level/float sensor or drainage issue (medium)

How to Fix Error E2

DIY Fix Basic user troubleshooting for E2 error

  1. Turn off and unplug the unit for 5–10 minutes to reset internal controls
  2. Check that the unit’s drainage tray/pan is properly drained and that a float switch isn’t stuck
  3. Ensure the air filters and intake/exhaust are clear and unit has adequate ventilation
  4. Power up the unit again and observe if the E2 code reappears

Technician Only Technician diagnostic and repair for sensor-related E2

  1. Visually inspect and test the temperature sensor resistance and wiring harness for continuity and correct values
  2. Inspect water/float level sensor for proper operation and replace if stuck or defective
  3. Check control board connections for sensor inputs and repair any loose connectors
  4. Test unit operation under controlled conditions after parts replacement

Parts needed: Temperature sensor, Water/float level sensor, Connector harnesses

🛑 When to Call a Pro:
  • If the E2 persists after basic user troubleshooting steps
  • If there is visible water leakage or suspected internal electrical faults
  • If internal sensors or control board diagnostics indicate failure

Next step

Choose the next step for E2

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Temperature Sensor

Monitors the internal temperature to ensure correct operation and prevent overheating.

Typical part-only price
$15 - $35
DIY difficulty
Easy
Estimated time
15-30 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Other parts options

Check related components first; use model search as a fallback.

Model number required

Model-compatible Air Conditioner parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

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Optional routine care

Maintenance supplies

These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.

Maintenance supply

Air Conditioner Fin Cleaner

For routine cleaning of accessible coil fins when permitted by the manufacturer. Disconnect power and follow product and appliance instructions.

View maintenance supply
Maintenance supply

Model-Compatible Washable AC Filter

A reusable filter option only where the appliance supports one. Match the full model, dimensions, and filter specification.

Compatibility check required: use the complete appliance model and compare the existing filter, bag, or specification before ordering.

Find one that fits my model

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 5-10 kOhms
part_number BD-AC-SENSOR-001
voltage_rating 120V AC

Common Questions

What does E2 error mean on blackdecker air conditioner?

E2 indicates a temperature sensor malfunction or a water/float sensor issue, leading to cooling problems.

Can I fix blackdecker air conditioner E2 error myself?

Yes, you can try resetting the unit, checking drainage, and ensuring proper ventilation.

How much does it cost to fix E2 error?

Repair costs typically range from $50 to $200+, depending on parts and labor.

When should I call a technician for E2?

Call a technician if the E2 error persists, there's water leakage, or suspected internal faults.

Data last verified: 2026-07-26

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