Haier Oven Error E4

⚡ Quick Answer: The Haier oven E4 error code signifies a malfunction in the temperature sensor circuit, typically due to a short circuit or a lack of signal from the ... ✅ DIY Fixable

What Does Error E4 Mean?

The Haier oven E4 error code signifies a malfunction in the temperature sensor circuit, typically due to a short circuit or a lack of signal from the main oven temperature sensor. This issue often leads to erratic temperature readings, causing the oven to fail to heat properly or not start at all. If you see E4 displayed on your oven's digital panel, it indicates that the temperature sensor may need inspection or replacement.

Common Symptoms:

  • Oven displays E4 on the digital panel
  • Oven may refuse to start or may stop heating
  • Temperature readings not registering or inaccurate

Possible Causes

  • Temperature sensor short circuit (medium)

How to Fix Error E4

DIY Fix Perform basic checks and power cycle

  1. Turn off the oven and disconnect it from mains power.
  2. Wait 5–10 minutes and reconnect power to see if the error clears.
  3. Ensure oven door is fully closed and no buttons are stuck.

Technician Only Inspect and replace the temperature sensor or wiring

  1. Disconnect oven from mains power.
  2. Remove oven back panel and locate the main temperature sensor (NTC).
  3. Check sensor wiring for open circuits, shorts, or loose connections.
  4. Measure sensor resistance at room temperature to verify it is within expected range.
  5. Replace faulty temperature sensor or repair wiring as needed.
  6. Reassemble and test oven operation.

Parts needed: Temperature sensor (NTC), Wiring harness/connectors

🛑 When to Call a Pro:
  • If internal inspection or electrical measurements are beyond user capability
  • If error persists after power cycle and basic checks
  • If there is visible damage to wiring or sensor that cannot be safely accessed

Technical Specifications

wattage N/A
component Temperature Sensor
resistance 1000-1100 ohms
part_number HAIER-TS1001
voltage_rating 120V AC

Common Questions

What does E4 error mean on Haier oven?

E4 error indicates a malfunction in the oven's temperature sensor, leading to incorrect temperature readings or heating failure.

Can I fix Haier oven E4 error myself?

Yes, you can perform basic checks such as power cycling the oven and ensuring the door is closed properly.

How much does it cost to fix E4 error?

The estimated repair cost for the E4 error ranges from ¥5,000 to ¥15,000, depending on parts and labor.

When should I call a technician for E4?

Call a technician if the error persists after basic checks, or if there is visible damage to the wiring or sensor.

Sources & References

Data last verified: 2026-03-09

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