Dacor Coffee Machine BREW-ERR Error: Brewing fault
This dacor coffee machine brew-err error code guide explains what this fault means for your Dacor appliance and how to respond safely. What BREW-ERR Means on the Dacor CM24 The BREW-ERR code on the Dacor CM24 built-in coffee machine indicates a brewing process fault. The machine monitors water flow rate and pump pressure during extraction. […]
~40%
DIY Fixable
From $200
Typical Repair Cost
30-60 min
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. A brewing system fault means coffee may not be prepared safely or at proper temperature.
Can I reset the code?
Yes. Power cycling and running a water-only brew cycle sometimes clears BREW-ERR.
When to stop immediately?
Stop if you notice: BREW-ERR repeats on every brew attempt after rinsing, Machine produces unusual grinding or clicking sounds from the pump area.
Symptoms You May Notice
Espresso shot dispenses too quickly or too slowly
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.
Coffee grounds are soupy or waterlogged in the puck
After brewing, the used coffee puck in the brew unit is wet and muddy instead of a firm, dry disc, indicating water pressure was too low during extraction.
Machine stops mid-brew and shows BREW-ERR
The CM24 begins dispensing coffee, then halts after a few seconds with BREW-ERR on the display. The cup is left partially filled with weak, under-extracted coffee.
Unusual gurgling or sputtering during brewing
The machine makes loud gurgling, popping, or sputtering noises during the brew cycle instead of the normal steady hum, indicating air in the water line or pump cavitation.
Possible Causes
Clogged or worn brew unit seals
The brew unit piston seals are worn or the internal screen is clogged with coffee oils and fine grounds, disrupting the pressure profile needed for proper extraction.
DIY PossibleFailing water pump
The vibration pump that generates brew pressure is weakening from age and can no longer sustain the 9-bar pressure required for espresso extraction.
Requires ProfessionalAir leak in the water system
A cracked hose or loose fitting in the internal water path allows air to enter the system, causing pressure drops and inconsistent flow during brewing.
Requires ProfessionalSafe Checks You Can Do
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1
Remove and clean the brew unit
Open the CM24 service door, press the release button, and slide the brew unit out. Rinse it under warm running water, paying attention to the fine mesh screen and piston area. Let it dry before reinstalling.
Clean the brew unit at least weekly with warm water. Monthly, use a soft brush to clear coffee oils from the piston seal grooves.
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2
Run a brew cycle with water only
Remove the bean hopper or bypass the grinder by selecting a water-only rinse cycle. Watch for consistent, steady water flow from the spout with no sputtering.
If the water-only cycle flows smoothly, the issue is grind-related (too fine or too much coffee). If it sputters, the pump or water path has a problem.
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3
Check and refill the water tank
Remove the water tank, rinse it, and refill with fresh cold water. Reinsert firmly until it clicks. A partially seated tank can cause air ingestion into the pump.
Make sure the tank valve at the bottom seats properly into the machine receptacle. A misaligned tank is the most common cause of pump air ingestion.
When to Call a Professional
Contact a qualified technician if:
- Pump pressure test shows output below 9 bar specification
- Brewing unit shows visible wear, cracked seals, or bent guides
- Flow meter or solenoid valve replacement required
Need Professional Help?
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