Eversys Automatic Coffee Machine Error Code E-023: Water Pump Unit
E-023 says the water pump unit is not connected, so the machine will not start drinks that need water. Confirm the tap is open and the hose runs straight, dry any water you find, and restart once. If E-023 returns, keep the machine off and call us.
High: the machine cannot run water-based drinks until the pump connection is restored.
- Code
- E-023
- Maker
- Eversys
- Equipment
- Super-automatic coffee
- Applies to
- Cameo and Enigma / Shotmaster (E-xxx error messages)
What does Eversys error code E-023 mean?
Every Eversys drink needs water to move, and the water pump unit is what moves it. The control board checks that it can see the pump before it starts a drink. When it cannot, the display shows E-023 and the machine stops, with staff left looking at a message and a dead machine. The wording is precise: the pump unit is not connected. That places the problem in the pump connection or in the board input that reads it, not in the water supply to the building. A closed tap or a weak supply would not make the board lose sight of the pump. The maker's list reads accordingly: the pump plug and cable, the board input, moisture near the pump connection, and the pump itself once the connection reads correctly. The last item is written in that order for a reason. A pump that is dead but still wired up would be seen by the board and reported differently, so a technician first makes the connection read, and only then judges the pump. Moisture matters because the pump sits in the wet part of the machine, where a small drip can reach the plug. Staff can check the tap and dry the area, but the connector is not a place for them to work.
Affected models and control systems
Eversys Cameo, Enigma and Shotmaster machines, as listed in the maker's E-xxx operator error 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
- E-023 appears and drinks stop
- The pump is silent when a drink is ordered
- The display is on but nothing pours
- Water is visible near the machine
Possible causes
Listed in Eversys's documentation
- Loose or damaged water pump plug or cable
- Failed board input reading the pump unit
- Moisture near the pump connection
- Failed pump, once the connection reads correctly
Other likely causes — what usually sits behind error code E-023 on this control. A technician confirms which one it is before any part is replaced.
- A small drip from a hose fitting that has run down onto the pump plug
- A pump plug that was bumped loose when the machine was moved for cleaning
Safe checks before calling for service
- Confirm the shut-off tap for the machine is open and the hose runs straight.
- Check the floor and counter around the machine for water and dry what you find.
- Flip the main switch off, give it ten seconds and switch the machine back on a single time.
- If E-023 comes back, keep the machine switched off and give us a call.
- Tell us if you saw any water near the machine.
How a technician diagnoses error code E-023
- Confirm E-023 and check for any recent leak or cleaning.
- With power off, inspect the pump plug and cable for moisture, corrosion and damage.
- Dry and reseat the connector, then test the cable.
- Test the board input that reads the pump unit.
- Once the connection reads correctly, test the pump for current and flow.
- Replace the part that tests bad and run test drinks.
- The pump plug sits near water and mains power.
- A wet plug, a bad cable and a failed board input look the same on the display.
- Judging the pump itself needs a current and flow test.
How error code E-023 differs from similar codes
E-011 reports the hydraulic unit not connected; E-023 reports the water pump unit itself.
Technical reference
- Document
- Eversys eSupport: Operator error messages for Cameo (E-XXX)
- Models / control
- Cameo and Enigma / Shotmaster (E-xxx error messages)
- Section
- Web page table of E-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
Does E-023 mean the water is off?
No. It says the control cannot see the pump unit, which is a connection problem.
Is the pump dead?
Not yet known. The connection has to read correctly before the pump can be judged.
Can a leak cause it?
It can, if moisture reaches the pump plug.
Need help with Eversys error code E-023?
A technician confirms the cause on site and gives you the price in writing before any work starts.