Column Refrigeration Diagnostics

Dacor Column Refrigeration
Error Codes

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

Enter the code shown on your column refrigeration 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

E1 E3 E4 HI PF

All Codes

E1 E3 E4 HI PF

Error Code Directory

Click any code for detailed troubleshooting steps

Low Medium High

Code Meaning Severity Common Symptom

E1 Cabinet sensor failure High The DRR24/DRR30 column refrigerator cannot hold a stable temperature — contents may freeze or warm unpredictably as the board lacks valid sensor data to drive the compressor correctly. View E3 Defrost fault Medium A visible frost layer forms on the DRR24/DRR30 interior back wall, indicating defrost cycles have not been completing on schedule. View E4 Column fridge fan fault High The DRR24 or DRR30 column refrigerator cabinet temperature rises noticeably while the compressor is running — cold is being generated but not distributed. View HI Column fridge temp high Medium Beverages, produce, and dairy products inside the DRR24 or DRR30 feel warmer than usual, indicating the column cabinet temperature has risen above the alarm threshold. View PF Power failure alert Low The DRR24 or DRR30 control display shows PF immediately after power is restored, prompting the user to acknowledge the interruption. View