Westinghouse Air Conditioner Error E0

⚡ Quick Answer: The Westinghouse Air Conditioner E0 error indicates a potential malfunction in the temperature sensor, which can lead to erratic temperature readings ... ⚠️ Difficulty Varies

What Does Error E0 Mean?

The Westinghouse Air Conditioner E0 error indicates a potential malfunction in the temperature sensor, which can lead to erratic temperature readings and inconsistent cooling or heating performance. It's crucial to address this issue promptly to restore optimal functioning of your air conditioning unit.

Common Symptoms:

  • Unit displays E0 code
  • Cooling or heating may stop or not start

Possible Causes

  • Temperature Sensor

How to Fix Error E0

DIY Fix Basic checks

  1. Turn off the unit and breaker for 5 minutes, then restart
  2. Ensure all visible wiring and connection cables between indoor/outdoor units are securely connected

Technician Only Professional diagnosis when E0 persists

  1. Check communication wiring between indoor and outdoor units
  2. Inspect control boards (PCBs) for communication faults or EEPROM issues
  3. Verify no loose connectors or damaged cable harnesses

Parts needed: wiring harness, indoor/outdoor PCB modules

🛑 When to Call a Pro:
  • If error recurs after power cycling
  • If unit fails to start or operates abnormally beyond basic checks

Next step

Choose the next step for E0

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

Check during diagnosis

Most relevant component to inspect

Wiring Harness

Connects controls, sensors, motors, and other electrical components inside the appliance.

Typical part-only price
$20 - $120
DIY difficulty
Medium
Estimated time
30-90 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.

Find a part that fits my model

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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 2000W
component Temperature Sensor
resistance 5-10 kOhms
part_number WAC-SENSOR-001
voltage_rating 120V AC

Common Questions

What does E0 error mean on Westinghouse Air Conditioner?

E0 error suggests a malfunction in the temperature sensor, causing erratic cooling or heating.

Can I fix Westinghouse Air Conditioner E0 error myself?

You may attempt basic checks like power cycling the unit and ensuring all connections are secure.

How much does it cost to fix E0 error?

Repair costs typically range from $100 to $400, depending on the region and specific model.

When should I call a technician for E0?

Call a technician if the error persists after basic checks or if the unit operates abnormally.

Data last verified: 2026-07-22

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