Schaerer Coffee Machine Message: Grinder Current Fault
Grinder current fault on a Schaerer Coffee Art Plus Touch is a grinder drive problem, and the manual lists a PC board defect or an electronics defect. No operator fix is listed. Call for service.
High: the grinder drive reports a current problem and ground-coffee drinks stop.
- Code
- Grinder current fault
- Maker
- Schaerer
- Equipment
- Super-automatic coffee
- Applies to
- Schaerer Coffee Art Plus Touch, model 040381-00090EUS (SAP 1340900024)
What does Schaerer Grinder current fault mean?
Each grinder motor draws a current that the PC board measures, and the board expects it to stay within limits while the motor runs. When the measured current is wrong, the board shows Grinder current fault and stops the grinder. The manual describes it as a grinder drive problem and lists two causes: a PC board defect, or an electronics defect. That is different from the Grinder left/right blocked message, which names a physical jam. Here the manual points at the electronics that drive and measure the grinder, so clearing beans will not help. The manual gives no operator step other than to call for service. What an operator can usefully do is note which drinks fail and whether the message is on all the time or only when a grinder starts.
Affected models and control systems
Schaerer Coffee Art Plus Touch, model 040381-00090EUS (SAP 1340900024), from the 03.2021 v03 user manual.
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
- Grinder current fault on the display
- Grinder not running
- Drinks needing ground coffee blocked
- Message appearing when a grinder starts
Possible causes
Listed in Schaerer's documentation
- PC board defect
- Electronics defect
Other likely causes — what usually sits behind Grinder current fault on this control. A technician confirms which one it is before any part is replaced.
- Grinder motor winding drawing abnormal current
- Wiring or connector to the grinder motor damaged
- Motor worn so that it pulls more current
- Moisture or coffee dust on the board connectors
Safe checks before calling for service
- Switch the machine off and on once to see whether the message returns.
- Check that the hopper and grinder area is free of loose parts.
- Do not open the machine.
- Use drinks that do not need ground coffee, if the machine allows.
- Call for service and tell them which grinder, left or right, was in use.
How a technician diagnoses Grinder current fault
- Read the message and history, and note which grinder is in use.
- Check the grinder motor current against its rating.
- Check the motor winding and wiring.
- Check the board connectors for dust and moisture.
- Test the board output for the grinder.
- Replace the board or motor as the tests show.
- Grinder drive circuits run at line voltage on the PC board.
- Current measurement is made on the live circuit.
- A board replacement needs the machine's settings loaded again.
How Grinder current fault differs from similar codes
Grinder left/right blocked is a physical jam. Grinder current fault points at the drive electronics.
Technical reference
- Document
- Schaerer Coffee Art Plus Touch User Manual
- Maker documentation
- Schaerer owner support
- Edition
- User Manual | 03.2021 | v03 (Version 03 / March 2021)
- Models / control
- Schaerer Coffee Art Plus Touch, model 040381-00090EUS (SAP 1340900024)
- Section
- Error Messages, pp. 23-24
- 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 Schaerer super-automatic coffee error codes
Is Grinder current fault the same as a blocked grinder?
No. A blocked grinder shows its own message. This one points at the PC board or electronics.
Can I clear it by emptying the beans?
The manual lists electronics as the cause, so emptying beans is unlikely to help.
Can the machine make other drinks?
Possibly, if they do not need the grinder, but check the display.
Need help with Schaerer Grinder current fault?
A technician confirms the cause on site and gives you the price in writing before any work starts.