White Westinghouse Air Conditioner Error E3

⚡ Quick Answer: The E3 error on White Westinghouse Air Conditioners indicates a fault with the outdoor ambient temperature sensor. This malfunction can lead to errati... ✅ DIY Fixable

What Does Error E3 Mean?

The E3 error on White Westinghouse Air Conditioners indicates a fault with the outdoor ambient temperature sensor. This malfunction can lead to erratic temperature readings and inconsistent cooling performance, particularly noticeable during hot weather when the unit may stop cooling intermittently.

Common Symptoms:

  • E3 code displayed on unit
  • Cooling stops intermittently, especially in hot weather

Possible Causes

  • Outdoor ambient temperature sensor fault (low)

How to Fix Error E3

DIY Fix Check outdoor unit conditions

  1. Ensure the outdoor unit is not obstructed and has adequate airflow.
  2. Turn the unit off and back on after a few minutes to see if the code clears.

Technician Only Inspect and possibly replace ambient temperature sensor

  1. Locate the outdoor ambient temperature sensor.
  2. Test the sensor and its wiring for correct resistance values using a multimeter.
  3. Replace the sensor if faulty and retest the system for error clearance.

Parts needed: Ambient temperature sensor, Sensor wiring/connectors

🛑 When to Call a Pro:
  • If the error persists after basic checks
  • If there is visible damage to the outdoor unit or wiring
  • If multiple error codes appear simultaneously

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 5-10 kΩ
part_number WS-TS-001
voltage_rating 120V AC

Common Questions

What does E3 error mean on White Westinghouse Air Conditioner?

E3 error signifies a malfunction in the outdoor ambient temperature sensor, leading to erratic cooling.

Can I fix White Westinghouse Air Conditioner E3 error myself?

Yes, check outdoor unit conditions and restart the unit to see if the code clears.

How much does it cost to fix E3 error?

Repair costs range from ¥5,000 to ¥20,000, depending on sensor replacement and labor.

When should I call a technician for E3?

Call a technician if the error persists after basic checks or if you notice visible damage.

Data last verified: 2026-04-23

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