Thermador Refrigerator Error Codes: How to Diagnose and Repair

Ah, the trusty Thermador refrigerator! It’s often the shining star of any modern kitchen, keeping our food fresh and our drinks chilled. But, like any appliance, it can sometimes throw a curveball our way by displaying those pesky error codes. Don’t fret, though! We’ve got your back. In this article, we’ll explore the various Thermador refrigerator error codes, how to diagnose them, and most importantly, how to repair them. So, let’s dive in and get your Thermador refrigerator back on track by tackling those error codes!


Thermador Refrigerator Error Codes: How to Diagnose and Repair

1. E0x Error Codes: Ice Maker Troubles

  • E01: Water valve is faulty
  • E02: Freezer thermistor is wonky
  • E03: Water filter is clogged or needs replacing

When your Thermador refrigerator’s ice maker starts acting up, it’s no picnic. Check the water valve, freezer thermistor, and water filter to see which one is giving you grief. Replace the faulty part or clean the filter, and you’ll be back in business in no time!

2. E1x Error Codes: Freezer Frustrations

  • E10: Freezer defrost sensor is on the fritz
  • E11: Freezer evaporator fan is kaput

If your Thermador refrigerator’s freezer is giving you the cold shoulder, it could be due to a defrost sensor or evaporator fan malfunction. Swap out the problematic part and bid adieu to those freezer blues!

3. E2x Error Codes: Fridge Fan Fiascos

  • E20: Refrigerator defrost sensor is acting up
  • E21: Refrigerator evaporator fan is out of whack

Nobody wants to deal with a Thermador refrigerator that’s not keeping its cool. If you’re facing a defrost sensor or evaporator fan issue, it’s time to replace the culprit and get things back on track.

4. E3x Error Codes: Communication Breakdown

  • E30: Main control board and user interface aren’t playing nice

When your Thermador refrigerator’s control board and user interface aren’t on speaking terms, you’ll need to pinpoint the source of the issue. Check for loose connections or a faulty control board, and get ready to enjoy some smooth communication once more!

5. E4x Error Codes: Door Drama

  • E40: Door switch is misbehaving
  • E41: Door seal isn’t sealing the deal

A door that won’t stay shut or a seal that’s not doing its job can really throw a wrench in the works of your Thermador refrigerator. Replace the door switch or seal, and you’ll have a fridge that knows how to keep its cool.

6. E5x Error Codes: Temperature Tantrums

  • E50: Freezer thermistor is acting out
  • E51: Refrigerator thermistor is causing a ruckus

When your Thermador refrigerator’s fridge or freezer temperature isn’t behaving, it’s time to give those thermistors a talking-to. Replace the faulty thermistor, and your temperature troubles will be a thing of the past!


Frequently Asked Questions

  1. What should I do if my Thermador refrigerator displays an error code that’s not listed here?

If you come across an error code that’s not covered in this article, it’s best to reach out to Thermador customer support or a qualified appliance technician for assistance.

  1. How often should I clean or replace my Thermador refrigerator’s water filter?

To ensure optimal performance and water quality, it’s recommended to clean or replace your water filter every six months or according to the manufacturer’s guidelines. If you notice a decline in water flow or taste, it might be time for a filter change.

  1. Can I fix my Thermador refrigerator error code issue myself, or should I call a professional?

While some minor issues can be resolved by a handy homeowner, it’s always best to consult your refrigerator’s user manual and follow the recommended troubleshooting steps. If you’re still having trouble or feel unsure about attempting a repair, it’s best to call in a professional appliance technician to ensure a safe and successful fix.

  1. How can I prevent future Thermador refrigerator error codes?

Regular maintenance and proper care of your fridge can help prevent many common error codes. Keep your refrigerator clean, ensure adequate airflow around the appliance, and stay on top of filter changes to keep your fridge running smoothly.

  1. Where can I find replacement parts for my Thermador refrigerator?

Thermador refrigerator replacement parts can be purchased from authorized dealers, online retailers, or directly from the manufacturer. Be sure to use genuine Thermador parts to ensure compatibility and maintain your warranty.



When your Thermador refrigerator starts throwing you error codes, it can be a real bummer. But don’t let it get you down! With this guide on Thermador refrigerator error codes: how to diagnose and repair, you’ll be well-equipped to tackle those fridge fiascos head-on. Remember to consult your user manual and seek professional help when needed to ensure your fridge gets back to its old, reliable self in no time. Cheers to a happy, healthy refrigerator!


Thermador refrigerator troubleshooting guide model list

  1. T36BB810SS – 36″ Built-In French Door Bottom-Freezer
  2. T36BT820NS – 36″ Built-In Bottom-Freezer
  3. T36IT900NP – 36″ Built-In French Door Bottom-Freezer (Freedom Collection)
  4. T36IT901NP – 36″ Built-In French Door Bottom-Freezer (Freedom Collection)
  5. T36IB900SP – 36″ Built-In Bottom-Freezer (Freedom Collection)
  6. T36IB901SP – 36″ Built-In Bottom-Freezer (Freedom Collection)
  7. T30BB910SS – 30″ Built-In Bottom-Freezer
  8. T30IB900SP – 30″ Built-In Bottom-Freezer (Freedom Collection)
  9. T30IB901SP – 30″ Built-In Bottom-Freezer (Freedom Collection)
  10. T24IR900SP – 24″ Built-In All-Refrigerator (Freedom Collection)
  11. T24IW900SP – 24″ Built-In Wine Preservation Column (Freedom Collection)
  12. T24ID900RP – 24″ Built-In Double Drawer Refrigerator/Freezer (Freedom Collection)


Thermador Official Website: Visit the Thermador website ( for product information, user manuals, and troubleshooting guides. You can also find contact information for Thermador customer support to help you with your appliance questions.

Local Appliance Repair Services: If you’re not comfortable tackling Thermador refrigerator error codes on your own or need professional assistance, consider contacting a local appliance repair service. Many companies specialize in refrigerator repairs and can quickly diagnose and fix your issue.

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