Whirlpool Air Conditioner Error E4

⚡ Quick Answer: The Whirlpool air conditioner E4 error indicates a malfunction related to the compressor's discharge protection, which can lead to erratic cooling per... ✅ DIY Fixable

What Does Error E4 Mean?

The Whirlpool air conditioner E4 error indicates a malfunction related to the compressor's discharge protection, which can lead to erratic cooling performance. This issue is often associated with the indoor temperature sensor, causing the unit to stop cooling or the compressor to shut down. If you see the E4 error on your control panel, it may require troubleshooting to identify and resolve the underlying cause.

Common Symptoms:

  • Unit displays E4 on control panel
  • Cooling stops or is disabled
  • Compressor or outdoor unit stops running

Possible Causes

  • Compressor discharge protection fault (medium)
  • Potential condenser temperature sensor issue (low)

How to Fix Error E4

DIY Fix Basic checks and reset

  1. Turn off the air conditioner using the remote and wall switch
  2. Disconnect power completely at the breaker or plug for a few minutes
  3. Check outdoor unit area for obvious blockages or debris around condenser coils
  4. Reconnect and restart the AC to see if the E4 clears

Technician Only Diagnose compressor discharge and sensor circuits

  1. Verify compressor discharge pressure and temperature during operation
  2. Test condenser and discharge temperature sensors for proper resistance values
  3. Inspect wiring harnesses between sensors, compressor, and control board for damage
  4. Check control board error logs and replace faulty sensor or board as indicated

Parts needed: Temperature sensors (condenser/discharge), Wiring harnesses, Control board

🛑 When to Call a Pro:
  • E4 persists after basic reset and cleaning
  • Unusual noises or overheating from compressor
  • Repeated protection shutdowns or erratic operation

Technical Specifications

wattage N/A
component Indoor Temperature Sensor
resistance 5-10 kOhms
part_number W10619844
voltage_rating 120V AC

Common Questions

What does E4 error mean on Whirlpool air conditioner?

The E4 error signifies a malfunction in the compressor's discharge protection, affecting cooling performance.

Can I fix Whirlpool air conditioner E4 error myself?

Yes, you can perform basic checks like resetting the unit and clearing debris around the outdoor unit.

How much does it cost to fix E4 error?

Repair costs for the E4 error range from $150 to $800, depending on the region and parts needed.

When should I call a technician for E4?

Call a technician if the E4 error persists after a reset, or if you hear unusual noises or experience overheating.

Sources & References

Data last verified: 2026-03-18

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