Error Code
Thermador Range E38 Error Code
E38 on a Thermador range is generally linked to a possible heating-related problem. This guide gives a plain-language overview, the symptoms you might notice, safe checks you can perform, and when it is best to call a technician — with a reminder that exact behavior varies by model.
Reviewed by Daniel Reeves · Last reviewed August 18, 2026
Error guide
Code overview
Quick answer — E38 — commonly associated with a heating issue on a Thermador range. Meaning can vary by model; verify before relying on it.
On many Thermador range models, the E38 code is commonly associated with a possible heating-related problem. The exact meaning can differ between appliance series and model years, so treat this as general guidance and confirm it against your specific model’s documentation before acting.
Model note: ASKO reuses codes across series and model years, so E38 may mean something different on another appliance or generation. Confirm against your model’s documentation and record the full model number before acting.
- Error code: E38
- Appliance: Range
What to look for
Symptoms you may notice
These are the signs homeowners often see when E38 appears on an ASKO appliance.
- The range shows E38 and results are cold or under-heated
- The cycle runs longer than usual before E38 appears
- Heating seems weak or absent when E38 is shown
Why it happens
Possible causes
Exact meaning can vary by model — treat these as common associations, not a final diagnosis.
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A heating element or its relay
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A control or sensor affecting heating
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Limescale or wear reducing heat on some models
Before you call
Safe checks you can make
Simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
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Confirm the appliance has power at the outlet
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Allow the appliance to cool fully before any check
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Perform a manufacturer-approved restart
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Record the full model number before contacting a technician
Safety first
Important safety warning
Do not open internal panels, access high-voltage wiring, or bypass any safety device. If you ever smell gas, stop immediately, do not operate any switches, leave the area and contact your gas provider and a qualified technician. If you see smoke, sparks, a burning smell, or water near electrical parts, switch the appliance off at the outlet if it is safe to do so and call a professional.
Please avoid
What not to attempt
Get help
When to call a technician
If E38 persists after the safe checks above, or you are unsure at any point, book a diagnosis. A technician can confirm what E38 means on your specific model and resolve the underlying cause safely.
Likely related component:
Often related to the heating element or relay (varies by model).
References
Sources & references
- Thermador appliance user manual — error/display messages section
FAQ
Frequently asked questions
Quick answers about E38, safe checks, and when to book a technician.
02 answers
You can safely try the basic checks above and a manufacturer-approved restart. If E38 returns, the underlying cause needs a proper diagnosis. Because the meaning can vary by model, confirm against your documentation.
Not necessarily. Thermador reuses codes across series and model years, and the exact meaning can differ. Record your full model number so the code can be interpreted correctly.
Book a repair
Tell us about your ASKO we’ll take it from there
Share your model and that you are seeing E38 — we’ll confirm an appointment. Prefer to talk? Call us and we’ll help right away.
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