Gaggenau Oven Error E138

What Does Error E138 Mean?

The Gaggenau oven error E138 indicates a potential malfunction in the heating element, which may lead to an inability to heat effectively or produce unusual clicking sounds during operation. If you encounter this error, it may require troubleshooting to identify the issue further.

Possible Causes

• Heating Element

How to Fix Error E138

DIY Fix Check for power reset and manual lookup

1. Turn off the circuit breaker or disconnect power to the oven for at least 1–2 minutes.
2. Restore power and observe whether the E138 code persists.
3. Locate your exact oven model’s user manual/technical documentation via Gaggenau’s official download portal by entering the E‑Nr/model number, and search within for any E‑code references.

Technician Only Contact Gaggenau support or authorized service

1. Provide the exact model number to Gaggenau customer support.
2. Request official documentation or service bulletin specifically for E138 on that oven model.
3. Have an authorized service technician diagnose live error code using manufacturer diagnostic tools.

🛑 When to Call a Pro:

• If the error persists after power reset and manual lookup fails to provide guidance.
• If unusual sounds, smells, or repeated faults occur alongside the error display.

Next step

Choose the next step for E138

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

Heating Element

Heats the water or air inside the appliance to the required temperature.

Typical part-only price

$40 - $95

DIY difficulty

Medium

Estimated time

30-45 mins

Optional: enter your model number

Apply

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.

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.

Technical Specifications

wattage	3000W
component	Heating Element
resistance	10-20 ohms
part_number	BOS-123456
voltage_rating	240V AC

Common Questions

What does E138 error mean on Gaggenau oven?

E138 typically indicates a malfunction in the heating element, causing heating issues or unusual sounds.

Can I fix Gaggenau oven E138 error myself?

Yes, try resetting the power by turning off the circuit breaker for 1-2 minutes and check the user manual for guidance.

How much does it cost to fix E138 error?

Repair costs for the E138 error vary by model and region; contacting a technician can provide specific estimates.

When should I call a technician for E138?

Call a technician if the error persists after a power reset or if you notice unusual sounds, smells, or repeated faults.

Sources & References

• Gaggenau official documentation download pages (official)

Data last verified: 2026-04-23