Alto-Shaam Combi Oven Error Code E200: SD Card Too Large
E200 SD Card Too Large means the SD card in the oven is larger than 2 GB. Contact service to order a replacement card.
Low: a compatibility message; the oven is not described as stopped.
- Code
- E200
- Maker
- Alto-Shaam
- Equipment
- Combi ovens
- Applies to
- Combitherm CT PROformance (CTP) and CT Classic (CTC)
What does Alto-Shaam error code E200 mean?
The oven reads and writes data, such as recipes and settings, to an SD card in its control. The control only supports cards up to 2 GB. When it finds a card larger than that, it posts E200 SD Card Too Large and cannot use the card. This is a compatibility message, not a failure of the oven. The manual lists one cause: an SD card larger than 2 GB. The remedy is also single: contact service to order a replacement card of the correct size. The code appears most often after someone puts in a newer, larger card, because today's cards are usually bigger than 2 GB. The oven's heating, steam and fan functions are not described as affected, but anything stored on the card will be unavailable until a supported card is fitted. Do not format or swap the card yourself without checking the size with service first.
Affected models and control systems
Alto-Shaam Combitherm CT PROformance and CT Classic combi ovens in sizes 6-10, 10-10, 7-20, 10-20, 20-10 and 20-20, electric and gas, with an SD card slot.
Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.
What you may notice
- E200 SD Card Too Large on the display
- Recipes or settings on the card not loading
- Message appearing right after a card was inserted
Possible causes
Listed in Alto-Shaam's documentation
- SD card larger than 2 GB
Other likely causes — what usually sits behind error code E200 on this control. A technician confirms which one it is before any part is replaced.
- A modern high-capacity card inserted in place of the original one
- A card from another device left in the slot after a data transfer
Safe checks before calling for service
- Note the size printed on the SD card.
- Remove the card only if the oven is off and you are sure it is the one that was inserted.
- Put the original card back if you still have it.
- Contact service to order a card of the correct size and mention E200.
How a technician diagnoses error code E200
- Read the code and ask what card is inserted and its capacity.
- Confirm the card is larger than 2 GB.
- Check whether the original card was removed and kept.
- Supply or format a compatible card and copy the oven's files to it.
- Retest that the oven reads the card without the message.
- The correct card must be loaded with the oven's own files.
- Copying settings and software to a new card needs the service files and a computer.
- A card swap on a live control board should be done with the oven off.
How error code E200 differs from similar codes
E200 is a card size message; the other messages in this family relate to heat, water or boards.
Technical reference
- Maker documentation
- Alto-Shaam owner support
- Edition
- MN-35949 Rev 08 03/22
- Models / control
- Combitherm CT PROformance (CTP) and CT Classic (CTC)
- Section
- Error Codes, pp. 25-31
- Checked
- October 2026
We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.
Related Alto-Shaam combi oven error codes
Can I use any SD card?
No. The oven accepts cards up to 2 GB.
Is my oven broken?
No, the message is about the card.
Will cooking work?
The manual does not list it as affected, but card data is unavailable.
Need help with Alto-Shaam error code E200?
A technician confirms the cause on site and gives you the price in writing before any work starts.