Coffee Machine Diagnostics

Dacor Coffee Machine
Error Codes

Meanings, severity levels, safe checks you can perform, and when to call a technician.

Enter the code shown on your coffee machine display

Is it safe to keep using it?

Depends on code severity. Low/Medium codes often allow continued use, High severity requires immediate stop.

Can error codes be reset?

Some codes clear after power cycle. Persistent codes indicate underlying issues needing repair.

When should I stop using it?

Stop immediately for water leak codes, burning smell, or any High severity error.

Most Common Codes

CALC BREW-ERR GRIND-JAM STEAM-ERR FILL CLEAN

All Codes

BREW-ERR CALC CLEAN FILL GRIND-JAM STEAM-ERR

Error Code Directory

Click any code for detailed troubleshooting steps

Low Medium High

Code Meaning Severity Common Symptom

BREW-ERR Brewing fault High The brew time deviates significantly from the normal 20 to 30 second range. A fast shot produces thin, watery coffee while a slow shot may barely trickle out. View CALC Descaling needed Medium A single espresso shot that normally takes 25 seconds now takes 40 to 60 seconds because mineral scale in the boiler and flow path restricts water flow. View CLEAN Cleaning cycle due Medium Accumulated coffee oils and old grounds residue inside the brew unit and internal tubing impart rancid or bitter flavors to every cup. View FILL Water tank empty Low Pressing any coffee selection button on the CM24 results in no action or a prompt to add water, even though you believe the tank should have water. View GRIND-JAM Grinder blocked High The grinder starts with normal sound, then emits a harsh scraping or clicking noise before stopping completely. The brew cycle cannot proceed without ground coffee. View STEAM-ERR Steam system fault High Turning the steam knob or pressing the steam button on the CM24 results in water dripping from the wand instead of pressurized steam, making milk frothing impossible. View