Dacor Wine Refrigeration COMP-ERR Error: Compressor error
This dacor wine refrigerator error code comp-err guide explains what this fault means for your Dacor appliance and how to respond safely. What Error Code COMP-ERR Means Error code COMP-ERR on Dacor wine refrigerators — including the HWC242, Heritage wine cellar, and Modernist wine column — signals a compressor fault. The compressor has failed to […]
25%
DIY Fixable
From $250
Typical Repair Cost
45-90 min
Pro Repair Time
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. COMP-ERR means the wine refrigerator has no active cooling. Wine stored in the cabinet will warm to room temperature. Move your wine collection to a suitable storage location until the compressor is repaired.
Can I reset the code?
No. Unplugging for 30 minutes may allow a thermal overload reset, but if the compressor or start relay has failed, COMP-ERR will return immediately on next start attempt.
When to stop immediately?
Stop if you notice: Stop if COMP-ERR returns within minutes of plugging back in after 30-minute rest., Stop if you hear loud grinding or knocking from the compressor area — compressor mechanical failure..
Symptoms You May Notice
Wine cabinet no longer cooling
The wine refrigerator cabinet temperature rises steadily above the set point because the compressor is not operating and no refrigeration is occurring.
COMP-ERR on the wine refrigerator display
The control panel shows COMP-ERR with an audible alarm, indicating the compressor circuit has reported a fault detected by the control board.
Compressor silent when unit should be running
The characteristic compressor hum is absent — the wine refrigerator is silent other than any remaining fan operation.
Clicking sound from compressor area
Repeated clicking near the compressor compartment may indicate the compressor is attempting to start, failing, and the thermal overload relay is cycling.
Possible Causes
Failed start relay or capacitor
The compressor start relay (often a PTC or relay-capacitor type) has failed, preventing the compressor motor from starting.
DIY PossibleCompressor thermal overload tripped
The compressor overheated and its internal thermal overload has opened. The unit needs time to cool before the overload resets.
DIY PossibleFailed compressor motor winding
The compressor motor itself has failed internally — a major repair requiring compressor replacement.
Requires ProfessionalSafe Checks You Can Do
-
1
Allow thermal overload to reset
Unplug the wine refrigerator for 30 minutes to allow a tripped compressor thermal overload to cool and reset. Restore power and listen for the compressor to start. If it runs, monitor for recurrence.
A compressor that trips its thermal overload repeatedly (more than twice in 24 hours) indicates an underlying issue — do not keep resetting without diagnosis.
-
2
Test the compressor start relay
Unplug the wine refrigerator, locate the compressor (typically behind the bottom front grille or rear access panel), and unplug the start relay from the compressor side terminal. Shake the relay — a rattling sound indicates a failed relay. Replace with an OEM part.
The PTC start relay is an inexpensive part (often $15–$40) and is the most common cause of a compressor that clicks but won't start. Always confirm the part number with the wine refrigerator model number.
Tools required -
3
Ensure adequate condenser ventilation
Confirm the wine refrigerator has adequate clearance around its condenser and that the condenser coils are clean. Overheating from poor ventilation is a leading cause of thermal overload trips that generate COMP-ERR.
Dacor Modernist wine columns installed in tight cabinetry surrounds are particularly susceptible to condenser ventilation issues.
When to Call a Professional
Contact a qualified technician if:
- New start relay installed but COMP-ERR persists — compressor winding failure, requiring compressor replacement.
- Compressor tests show open or shorted windings — sealed system refrigerant recovery required before replacement.
- Refrigerant smell detected near the compressor compartment — refrigerant leak alongside compressor failure.
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
Wine Refrigeration Repair Service Schedule Appointment