Eversys Coffee Machine Error Code S-037: Waste Water Tank Emptied?
S-037 asks whether you have emptied the waste water tank. Empty the tank if it is full, then answer the question.
Low: a confirmation prompt; the machine works normally after the answer.
- Code
- S-037
- Maker
- Eversys
- Equipment
- Super-automatic coffee
- Applies to
- Eversys Cameo range (Cameo/Core, Classic, ST, in-box), e'Support article
What does Eversys error code S-037 mean?
Some Cameo installations collect waste water in a tank instead of draining to a plumbed line. When that tank needs attention, the control asks the operator to confirm that it has been emptied, and it displays "Have you emptied the waste water tank?" as S-037. The maker's table repeats the question and lists no cause or other action. The machine relies on the operator's answer to know there is room again. Answering that it is emptied when it is not could lead to overflow, which is the reason for the question. It is a confirmation prompt and not a breakdown. It is a prompt in the stop list, so drinks wait until it is answered, and the table adds nothing else.
Affected models and control systems
Eversys Cameo range (Cameo/Core, Classic, ST and in-box versions), as covered by the maker's e'Support table of S-number stop messages.
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
- S-037 as a question on the screen
- Drinks are held until it is answered
- The waste water tank is full or close to it
Possible causes
Likely causes — what usually sits behind error code S-037 on this control. A technician confirms which one it is before any part is replaced.
- The control needs confirmation that the waste water tank has been emptied
- A tank emptied but the question left unanswered
- A level reading that keeps asking even when the tank is empty
Safe checks before calling for service
- Look at the waste water tank and empty it if it is full.
- Put the tank back and seat its connector.
- Answer the question on the screen.
- If the question keeps returning after emptying, tell the technician.
How a technician diagnoses error code S-037
- Check the waste tank level input and connector.
- Confirm the answer is registered by the control.
- Inspect the drain path and tank hose for blockage.
- Replace the level sensor if it reads full with an empty tank.
- The level sensor is tested live inside the machine.
- A blocked waste hose may mean disassembly that a technician should do.
How error code S-037 differs from similar codes
S-036 is the matching question for the source water tank on the supply side.
Technical reference
- Document
- Operator stop messages for Cameo (S-XXX)
- Models / control
- Eversys Cameo range (Cameo/Core, Classic, ST, in-box), e'Support article
- Section
- Web page table of S-numbers, Infos messages and Explanations / Remedies (no page numbers)
- 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 Eversys super-automatic coffee error codes
Is this an error?
No. It is a question that makes you confirm the tank was emptied.
Should I answer yes without emptying?
No. The tank could overflow.
It asks again straight after. Why?
The level sensor may be reading full, so report it.
Need help with Eversys error code S-037?
A technician confirms the cause on site and gives you the price in writing before any work starts.