Eversys Coffee Machine Error Code S-036: Source Water Tank Refilled?
S-036 asks whether you have refilled the source water tank. Refill the tank if it is low, then answer the question.
Low: a confirmation prompt; the machine works normally after the answer.
- Code
- S-036
- 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-036 mean?
Some Cameo installations draw water from a source water tank, not from a plumbed line. After the tank has been low, the control asks the operator to confirm that it has been refilled, and it displays "Have you refilled the source water tank?" as S-036. The maker's table repeats the question and lists no cause or other action. The machine cannot see the tank level for itself at that moment, so it depends on the operator's honest answer before it resumes. Answering that the tank is refilled when it is not could let the pump run dry, which is why the question exists. It is a confirmation prompt, not a breakdown. It is a prompt in the stop list, so drinks wait until it is answered.
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-036 as a question on the screen
- Drinks are held until it is answered
- The source water tank may be nearly empty
Possible causes
Likely causes — what usually sits behind error code S-036 on this control. A technician confirms which one it is before any part is replaced.
- The control needs confirmation that the source water tank has been refilled
- A tank refilled but the question left unanswered
- A tank level reading that keeps asking even when the tank is full
Safe checks before calling for service
- Look at the source water tank and fill it if low.
- Seat the tank and its connector properly.
- Answer the question on the screen.
- If the question keeps returning after a refill, tell the technician.
How a technician diagnoses error code S-036
- Check the tank level input and the connector.
- Confirm the answer is registered by the control.
- Inspect the water pump for dry-run wear.
- Replace the level sensor if it reads empty with a full tank.
- The tank sensor and pump are tested live inside the machine.
- A pump that has run dry may be damaged and needs replacing by a technician.
How error code S-036 differs from similar codes
S-037 is the matching question for the waste water tank on the other side of the water circuit.
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 refilled.
Should I answer yes without refilling?
No. The machine relies on the answer, and a dry pump can be damaged.
It asks every time I refill. Why?
That is how the prompt works, though a repeat after answering suggests a sensor problem.
Need help with Eversys error code S-036?
A technician confirms the cause on site and gives you the price in writing before any work starts.