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Error code reference

Schaerer error codes, what they mean and how to fix them.

When a Schaerer hits a fault it puts a numbered code on the screen, grouped roughly by subsystem: brew unit codes in the 10s, water in the 20s, grinders in the 30s, milk in the 40s, cleaning in the 50s, boiler in the 60s, and electronics in the 70s. Below are the codes we meet most on the Coffee Soul, Coffee Skye, Coffee Club, and Coffee Art families, plus the older installed-base machines, with what each one means and what's safe to try before you call anyone.

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About these codes. Compiled from Schaerer product documentation and our own service logs. Code tables shift between models and firmware versions, so treat this page as a field guide, not a replacement for the machine's service manual. Updated July 2026

Boiler

5 codes
60 Coffee boiler temperature fault Critical

The coffee boiler is not reaching, or is overshooting, its target brew temperature. The control board reads the NTC temperature sensor and decides the boiler is out of range. The machine locks out coffee dispensing to protect the heating element.

Likely causes

  • Failed NTC temperature sensor on the boiler
  • Heat shield or scale insulating the element from the sensor
  • Degraded heating element no longer hitting setpoint
  • Sticking relay on the controller board

Try this first

  1. Power-cycle from the main switch, not the standby button. Leave it off for 30 seconds.
  2. Confirm the descale cycle is current. If it's overdue, run it.
  3. If the code clears briefly then returns, note how long it took. That timing helps the technician.
When to call us

If the code returns within minutes of a power cycle, or returns after a completed descale, the sensor or element is the culprit. Call us.

Call about 60
61 Steam boiler temperature fault Critical

Same fault family as code 60, but on the steam side. The steam boiler isn't holding its target temperature window. On SteamBoost-equipped Coffee Soul and Coffee Prime, this disables steam-based drinks.

Likely causes

  • Failed steam-side NTC sensor
  • Scale buildup in the steam boiler reducing heat transfer
  • Steam heating element near end of life
  • Loose or corroded sensor connector

Try this first

  1. Power-cycle from the main switch.
  2. Check whether non-steam drinks (espresso, hot water) still work. They usually do, which confirms the steam side as the problem.
  3. Run the steam circuit descale if your machine has the menu option.
When to call us

Steam boiler element replacements are not DIY on this platform. If the code persists, call us.

Call about 61
62 Boiler heat-up timeout Critical

The boiler took too long to reach operating temperature from cold. The machine gives up rather than run the element continuously and risk overheating. Often seen after a long power-off or first-thing-in-the-morning start-up.

Likely causes

  • Heavily scaled boiler insulating the element
  • Element degradation reducing wattage output
  • Failed safety thermostat (Klixon) cutting power early
  • Low voltage at the outlet under load

Try this first

  1. Power-cycle and try again with the machine warm if possible.
  2. Check the descaling interval. Two missed descales is enough to cause this.
  3. Confirm the outlet is on a dedicated circuit and not sharing with high-draw equipment.
When to call us

If the descale is current and the code keeps coming back at cold start, the element or Klixon needs testing. Book a service call.

Call about 62
63 Boiler pressure fault Critical

Pressure on the steam boiler is outside the expected range. Either too low (no steam available) or too high (safety risk). The machine locks out steam dispensing immediately.

Likely causes

  • Failed pressure sensor or pressure switch
  • Blocked safety valve sticking closed
  • Scale obstructing the pressure sensor port
  • Pump or fill valve issue causing wrong water level

Try this first

  1. Power-cycle from the main switch.
  2. Listen for the pump cycling normally on start-up. Unusual pump behaviour is a clue.
  3. Do not attempt to access the boiler. Pressurized components are dangerous.
When to call us

Pressure faults are technician-only. Call us before running another cycle.

Call about 63
65 Hot water boiler temperature fault Warning

On machines with a separate hot water boiler (Coffee Soul, Coffee Prime tea/hot water configurations), the dedicated hot water tank is out of temperature range. Coffee dispensing usually still works.

Likely causes

  • Hot water boiler NTC sensor failure
  • Scale in the hot water circuit
  • Hot water element degradation
  • Sensor harness loose at the connector

Try this first

  1. Power-cycle and confirm coffee drinks still dispense normally.
  2. If you have a hot-water rinse function, try it and listen for normal pump and valve actuation.
  3. Note the descale status.
When to call us

If coffee works but hot water won't dispense, that's a clean diagnosis for a technician visit. Book it.

Call about 65

Brew unit

6 codes
10 Brew unit blocked / motor stalled Critical

The brew unit motor tried to move the brew piston and the encoder didn't register the expected revolutions. Translation: something is physically jamming the brew unit, or the motor itself is failing.

Likely causes

  • Grind buildup on the brew piston or cylinder walls
  • Worn or torn brew screen catching on the piston
  • Coffee grounds compacted from a missed grounds-empty cycle
  • Worn gear or motor at end of life

Try this first

  1. Remove the brew unit per the on-screen instructions, rinse it under warm water, and clean off any visible grind buildup.
  2. Inspect the brew screens (top and bottom) for tears.
  3. Reseat the brew unit firmly and run a rinse cycle.
When to call us

If cleaning doesn't resolve it, or you see grounds-in-cup along with the code, the screens or piston seals need replacing. Call us.

Call about 10
11 Brew unit not detected / home position fault Critical

The brew unit's home-position sensor isn't reporting back to the controller. The machine either thinks the brew unit is missing or that it didn't return to start position after the last cycle.

Likely causes

  • Brew unit not seated correctly after the last clean
  • Debris on the reed sensor that detects brew unit position
  • Failed home-position sensor
  • Cable disconnected at the sensor

Try this first

  1. Power off, remove the brew unit, and reseat it firmly. You should feel it lock into position.
  2. Wipe the area where the brew unit meets the chassis with a clean cloth.
  3. Power-cycle and run a rinse cycle.
When to call us

Most reseat-and-restart cases clear in 5 minutes. If yours doesn't, the sensor needs replacing.

Call about 11
12 Grounds container missing or full Warning

The machine cannot detect the grounds container, or it has counted enough pucks to consider the container full. Coffee dispensing is blocked until the container is emptied and reinserted.

Likely causes

  • Grounds container actually full
  • Container not pushed all the way in
  • Failed magnetic detection switch on the container slot
  • Internal counter not resetting when container is emptied

Try this first

  1. Pull the grounds container, empty it, rinse it, and reinsert firmly.
  2. Confirm the drip tray and grounds container are both clicked into position.
  3. Wait 5 seconds for the counter to reset before trying a drink.
When to call us

If the code stays on with the container clearly empty and inserted, the magnetic switch needs testing. Book a service call.

Call about 12
13 Drip tray missing or full Warning

The drip tray sensor isn't reporting the tray as present and empty. The machine blocks dispensing rather than risk an overflow.

Likely causes

  • Drip tray not seated all the way
  • Drip tray actually full
  • Drip tray level sensor failed or fouled with coffee residue
  • Magnetic switch failed

Try this first

  1. Empty the drip tray and reinsert it firmly until it clicks.
  2. Wipe the underside of the tray and the sensor area in the chassis.
  3. Wait 5 seconds for the sensor to register the empty state.
When to call us

If the sensor reads full with an empty tray, it's failed and needs replacement.

Call about 13
22 Brew pressure out of range Warning

The machine measured brew pressure during the last shot and it fell outside the acceptable window. Often a transient warning rather than a hard fault.

Likely causes

  • Grind drift over time after burr wear
  • Pump output degrading with age
  • Worn brew piston seal letting pressure bypass
  • Pressure regulator out of spec

Try this first

  1. Note whether the next few drinks dispense at the right volume and look normal in the cup.
  2. If the issue is recent, check whether anyone changed grind settings or bean type.
  3. Run the daily clean and rinse cycle.
When to call us

If the warning is paired with weak or watery coffee, the pump or seals need attention. Schedule a tune-up.

Call about 22
Brew unit removal Brew unit removal request Info

Scheduled prompt asking the operator to remove and clean the brew unit. Not a fault. The machine has counted enough cycles since the last weekly clean.

Likely causes

  • Weekly clean schedule reached
  • Counter triggered by cup count, not time

Try this first

  1. Remove the brew unit per the on-screen prompt.
  2. Rinse under warm water, brush off grind residue.
  3. Reseat and acknowledge the prompt to reset the counter.
When to call us

Only call if the prompt won't dismiss after a proper clean.

Call about Brew unit removal

Milk system

4 codes
40 Milk system flow fault Critical

The BestFoam or ProFoam milk system tried to dispense and the flow sensor didn't register milk movement. Either no milk is reaching the foam chamber, or the air-to-milk ratio is wrong.

Likely causes

  • Milk container empty
  • Milk line kinked or disconnected
  • Milk pump worn or air-locked
  • Foam-chamber pathway blocked with dried milk residue

Try this first

  1. Confirm milk container has milk and the line is fully seated.
  2. Run the daily milk cleaning cycle if it hasn't been done.
  3. Disconnect and reconnect the milk line at the machine end to clear air.
When to call us

If the daily clean and reseat don't resolve it, the milk pump or foam chamber needs disassembly and service.

Call about 40
41 Milk temperature fault Warning

Milk dispensed cold or significantly under target temperature. On BestFoam systems with milk heating, the heat exchanger or temperature sensor is the suspect.

Likely causes

  • Scale in the milk heat-exchange path
  • Failed milk temperature sensor
  • Steam circuit problem indirectly affecting milk heating
  • Wrong milk-temperature setpoint after a recent menu change

Try this first

  1. Check the menu for the milk-temperature setting and confirm it hasn't been changed.
  2. Run the daily milk clean.
  3. Test a non-milk steam drink to isolate whether steam itself is working.
When to call us

Cold-milk complaints from baristas are persistent and frustrating. Book us in and we'll calibrate end to end.

Call about 41
42 Milk cooler temperature fault Warning

The under-counter or side-mounted milk cooler is reading outside the safe temperature range. Milk drinks are usually blocked until resolved for food-safety reasons.

Likely causes

  • Cooler door not closing properly
  • Cooler condenser dusty or blocked
  • Failed cooler thermostat
  • Refrigerant leak (less common)

Try this first

  1. Confirm the milk cooler door seals properly.
  2. Vacuum the condenser coils if accessible.
  3. Check whether the cooler is on a circuit that may have tripped.
When to call us

If the cooler is the source of the fault, that's a refrigeration call. Tell us when you book so we bring the right gear.

Call about 42
43 Milk pump overload Critical

The milk pump is drawing more current than expected. Usually a blockage downstream forcing the pump to work against pressure.

Likely causes

  • Dried milk residue in the foam chamber narrowing the pathway
  • Worn pump impeller
  • Failed pump motor
  • Sticking solenoid valve in the milk circuit

Try this first

  1. Run the daily milk clean cycle with fresh cleaner.
  2. Inspect the milk line and foam chamber for visible residue.
  3. Power off before the third attempt to avoid damaging the pump.
When to call us

Pump overloads escalate fast. Don't retry repeatedly. Call us.

Call about 43

Grinder

3 codes
30 Left grinder no beans or blocked Warning

The left grinder ran for too long without dose feedback, meaning either the hopper is empty or something is blocking the grinder throat.

Likely causes

  • Hopper empty (most common)
  • Beans bridging above the grinder throat
  • Small stone or foreign object jammed in the burrs
  • Failed grinder motor or dose sensor

Try this first

  1. Open the hopper and confirm bean level. Tap the hopper to dislodge any bridging.
  2. Look down the throat for any obvious foreign objects.
  3. If you suspect a stone, do not run the grinder again. Call us.
When to call us

If the hopper is full and beans flow freely but the code persists, the burrs may be damaged or the motor may be failing.

Call about 30
31 Right grinder no beans or blocked Warning

Same fault as code 30, but on the right grinder. Twin-grinder machines (Coffee Soul, Coffee Skye, Coffee Art, and installed-base Coffee Prime configurations) use this code to isolate the fault to the second bean path.

Likely causes

  • Right hopper empty
  • Beans bridging or stale beans clumping
  • Foreign object in the right grinder
  • Right grinder motor or burr issue

Try this first

  1. Check the right hopper and refill if needed.
  2. Inspect for bridging or foreign objects.
  3. If only one bean type is being used, consider whether the right grinder needs to be active at all.
When to call us

Same threshold as code 30. If beans flow and the code stays, call us.

Call about 31
32 Grinder current draw fault Critical

The grinder is drawing more current than expected during a grind cycle. The machine cuts power to the motor to prevent damage.

Likely causes

  • Foreign object jamming the burrs
  • Burrs worn to the point of binding
  • Failed grinder motor
  • Grind set too fine for the burr condition

Try this first

  1. Power off immediately. Do not retry repeatedly. You risk burning out the motor.
  2. If you can safely look down the throat with the machine off and unplugged, check for stones.
  3. Adjust grind coarser before retrying.
When to call us

Repeated current faults will kill the motor. Call us before the third attempt.

Call about 32

Electronics

2 codes
70 Touchscreen / display fault Critical

The control board lost communication with the touchscreen, or the touch digitizer is misreading. On the 10 and 12-inch Coffee Soul displays, this is the symptom you see if a ribbon cable comes loose.

Likely causes

  • Loose ribbon connector between display and controller
  • Failed display module
  • Firmware update interrupted
  • Touch digitizer hardware failure

Try this first

  1. Power-cycle from the main switch with a 60-second wait.
  2. Note whether the screen lights up at all. No backlight is a different fault than unresponsive touch.
  3. Do not attempt firmware recovery without a known-good image.
When to call us

Display module work requires opening the head. Call us before doing anything else.

Call about 70
71 Firmware / software fault Critical

The machine detected corrupted firmware or a failed update. May boot-loop or sit on a startup screen.

Likely causes

  • Power interruption during a recent firmware update
  • Corrupted flash memory
  • Failed controller board
  • Mismatched software versions between display and controller

Try this first

  1. Power-cycle once and wait 90 seconds for full boot.
  2. Do not pull the plug during start-up.
  3. Do not attempt to reflash without service tools.
When to call us

Firmware recovery requires the Schaerer service interface. Call us.

Call about 71

Water

3 codes
20 Water tank empty / refill water Info

On tank-fed machines, the water reservoir is empty. On mains-connected machines, this can also indicate the supply line is closed or starved.

Likely causes

  • Water tank actually empty
  • Mains shut-off valve closed
  • Float sensor stuck in the tank
  • Blocked inlet filter on the mains connection

Try this first

  1. Refill the tank or open the mains shut-off.
  2. Wiggle the float sensor in the tank to free it if it's stuck.
  3. Check the inlet hose isn't kinked behind the machine.
When to call us

If the tank is full and the float isn't stuck, but the code stays, the float sensor itself needs replacement.

Call about 20
21 Water flow error / pump fault Critical

The pump is running but the flow meter isn't registering the expected water volume. The brew chamber may be blocked, the pump output may be low, or the flow meter itself isn't reading.

Likely causes

  • Grind set too fine (most common single cause)
  • Scale obstructing the flow meter impeller
  • Pump worn and not producing rated pressure
  • Air lock in the water lines after a refill

Try this first

  1. Adjust grind one or two steps coarser and try again.
  2. Run a hot-water dispense to clear any air lock.
  3. If the machine has been moved or the tank was bone-dry, prime the lines per the on-screen prompts.
When to call us

If grind is correct and the code persists, the flow meter or pump needs servicing. Common on machines past 5 years.

Call about 21
Water filter exhausted Water filter change required Warning

The water filter cartridge has run through its rated volume. Continued use without replacement accelerates scale buildup in the boiler.

Likely causes

  • Filter at end of rated life
  • Higher cup volume than the filter is sized for
  • Counter not reset after the last filter swap

Try this first

  1. Replace the cartridge with the correct Schaerer-spec filter.
  2. Reset the filter counter through the menu.
  3. Confirm water-hardness setting matches your actual water.
When to call us

If you don't keep filter cartridges on hand, we can supply them with a service visit.

Call about Water filter exhausted

Sensors

3 codes
72 Sensor / CAN bus communication fault Critical

The controller lost communication with one or more sensors on the internal CAN bus (the network that connects sensors and controllers inside the machine). Specific sub-codes identify which node is silent.

Likely causes

  • Loose connector on a sensor harness
  • Failed sensor
  • Damaged CAN cable
  • Controller board CAN driver issue

Try this first

  1. Power-cycle and watch which functions return and which don't. That narrows down the silent node.
  2. Don't open the head to chase wires.
  3. Photograph the screen with the error so the tech can see the sub-code.
When to call us

Internal bus faults are technician-only. Call us with the sub-code in hand.

Call about 72
73 Steam valve fault Warning

The steam solenoid valve isn't responding as expected. Either it's not opening when commanded, or it's not closing fully.

Likely causes

  • Scale buildup on the valve seat
  • Worn valve cartridge leaking past
  • Failed solenoid coil
  • Wiring issue at the valve

Try this first

  1. Run a descale cycle if it's due.
  2. Listen for the valve clicking on steam commands.
  3. Note whether steam still produces but is weak (different from no steam).
When to call us

Steam valve replacement is straightforward but requires draining the boiler. Call us.

Call about 73
75 Cup detection sensor fault Info

On self-service Coffee Soul configurations, the optical cup detection sensor isn't reading a cup or is reading inconsistently. Drink will dispense but the machine may warn the user.

Likely causes

  • Coffee residue or milk splatter on the sensor lens
  • Sensor mount knocked out of alignment
  • Cup material outside the sensor's detection range (very dark, very transparent)
  • Failed sensor

Try this first

  1. Wipe the sensor lens with a clean dry cloth.
  2. Confirm the sensor is pointed at the cup drop zone, not off-axis.
  3. Test with a standard ceramic mug to rule out cup-material issues.
When to call us

If a clean sensor still misreads, replacement is quick and inexpensive.

Call about 75

Cleaning

4 codes
50 Cleaning required Warning

The cleaning interval counter has hit its threshold. Daily, weekly, or full sanitation cycle is overdue. The machine may restrict certain drinks until cleaning is completed.

Likely causes

  • Daily clean was skipped
  • Counter reset wasn't completed after the last cycle
  • Machine is genuinely overdue

Try this first

  1. Run the prompted cleaning cycle end to end with the correct cleaner.
  2. After the cycle, verify the counter has reset.
  3. Refresh the team on the daily clean SOP if it's being skipped.
When to call us

If you ran the cycle and the warning won't clear, the counter reset isn't taking. We can clear it through the service menu.

Call about 50
51 Cleaning cycle interrupted Warning

A cleaning cycle started but did not complete. Could be a power blip, an open door mid-cycle, or a level sensor reading wrong.

Likely causes

  • Door opened during cycle
  • Power interrupted mid-cycle
  • Cleaning solution exhausted before cycle finished
  • Level sensor in cleaning tank misreading

Try this first

  1. Restart the cleaning cycle from the menu and let it run uninterrupted.
  2. Use fresh cleaning solution.
  3. Don't open the door, drip tray, or grounds container during the cycle.
When to call us

If you can't get a cycle to complete on a second try, there's a sensor or pump issue. Book a visit.

Call about 51
52 Cleaning solution empty Warning

The cleaning solution reservoir or cleaning tablet dispenser is empty. Cycles that need cleaner are blocked until refilled.

Likely causes

  • Bottle or tablet supply actually empty
  • Suction tube not properly inserted into the bottle
  • Level sensor failure

Try this first

  1. Replace the cleaner bottle or refill the tablet dispenser.
  2. Confirm the suction tube reaches the bottom of the bottle.
  3. Reset the cleaner-low counter through the menu.
When to call us

Only call if the sensor is misreading a full bottle. Otherwise, fresh cleaner solves it.

Call about 52
55 Descaling required Warning

The descale counter has hit its threshold, calculated from water hardness and cup count since the last descale. Some drinks may be restricted.

Likely causes

  • Descale interval reached
  • Counter wasn't reset after the last descale
  • Water hardness set higher than actual (causing early prompt)

Try this first

  1. Run the full descale cycle with the correct Schaerer descaler.
  2. Reset the counter through the menu.
  3. If your area's water hardness has changed (filter swap, building system change), update the setting.
When to call us

If the descale was just done and the prompt persists, the counter isn't resetting. We can clear it.

Call about 55

Other

1 code
HACCP log full HACCP / cleaning log memory full Info

On machines configured for HACCP food-safety logging, the internal event log has reached capacity. The machine will continue to run but new events overwrite the oldest.

Likely causes

  • Log retention period reached
  • USB export not run for a long time
  • Log size setting too small for actual use

Try this first

  1. Insert a USB stick and export the log per the menu.
  2. After successful export, clear the log.
  3. If your venue requires HACCP records, ensure the export is part of weekly closing.
When to call us

Only relevant if you have audit obligations and the export isn't working.

Call about HACCP log full

Code you can't find?

Call us with the exact display string. We'll diagnose by phone.

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FAQ

Schaerer error codes, frequently asked.

9 answers about resetting codes, recurring faults, firmware versions, and when DIY ends.

Updated July 2026

What does Schaerer error code 60 mean?

Every documented Schaerer fault we see is listed above, with its meaning, common causes, and what to try before calling a technician. If the code on your machine isn't on this page, call us with the exact display string and we'll work it out by phone.

Can I clear or reset a Schaerer error code myself?

Sometimes. Many Schaerer codes clear after a power cycle, a completed descale, or a counter reset through the service menu. Codes tied to a hardware fault (failed sensor, blown element, board issue) will return immediately and need a technician. Each code above lists what's safe to try first.

Why does the same Schaerer error keep coming back?

A code that returns after a power cycle is signalling a real fault, not a glitch. The underlying part (sensor, heating element, valve, motor, board) needs replacement. Repeat codes are diagnostic gold for us, so call with the exact code and any timing or symptom pattern you've noticed.

My Schaerer code isn't listed. Why?

Schaerer updates fault tables across firmware revisions and model generations, and not every code is documented publicly. We see codes in the field that aren't in any published list. Call us with the exact display string and the model and we'll work it out from our service log.

How fast can you get on-site if I'm stuck on an error code?

Most calls in Toronto and the immediate GTA get same-day on-site response when scheduling allows. Tell us the code and the model when you book and we'll bring the right parts on the first visit so the repair finishes the same day in most cases.

Do I need to be authorized by Schaerer to reset an error code?

No. We're an independent service provider, not affiliated with Schaerer, and we work on machines outside the manufacturer's authorized network routinely. That independence lets us service older or out-of-warranty machines authorized networks may decline, and quote transparently every time.

Is it worth fixing an old Schaerer machine that keeps throwing codes?

Depends on the machine, the code, and the cost. We give you honest math on this. If repairs are starting to exceed roughly 50% of a refurbished replacement and multiple major systems are throwing codes, we'll tell you it's time to look at replacing rather than running up the repair bill.

Will independent service void my Schaerer warranty?

If your machine is under the manufacturer's warranty, independent service may affect coverage depending on Schaerer's specific terms. Try the manufacturer's authorized network first. If their response is slow or they decline coverage for your code, call us and we'll service it on standard terms.

How many Schaerer codes are documented on this page?

31 codes are documented above, organized by the system they affect. The list is compiled from manufacturer service literature, technician forums, and our own service log. We update it as new codes appear or firmware adds new states.

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Where to next

When the code is the symptom of something bigger, here's where to go.

Stuck on a Schaerer error code? Call a specialist.

We diagnose Schaerer codes by phone routinely. Same-day on-site dispatch if it needs hands on the machine.

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