What does Alfa Laval error code OL mean?

Error code OL on Alfa Laval equipment indicates compressor overload — check motor current draw. Refer to the Alfa Laval service manual for specific diagnostic steps and safety precautions before troubleshooting.

How do I reset a Alfa Laval unit after a fault?

To reset a Alfa Laval unit, first resolve the root cause of the alarm. Then power cycle the unit or press the reset button on the controller. For Alfa Laval systems with digital controllers, navigate to the fault log and clear active alarms. Never reset without investigating the cause.

Where can I find Alfa Laval service manuals and documentation?

Official Alfa Laval service manuals are available through authorised distributors and the Alfa Laval technical support portal. AskWhiz provides instant AI-powered access to Alfa Laval troubleshooting information via WhatsApp — no manual hunting required.

refrigeration

Alfa Laval Troubleshooting Assistant

Get instant AI-powered help for Alfa Laval fault codes and equipment issues via WhatsApp. Our assistant is trained on official manufacturer documentation — available 24/7 for field technicians.

By Octavian Ghindea

Co-founder & CTO · Reviewed May 2026

What error codes does Alfa Laval display?

Compressor overload — check motor current draw

Low pressure fault — check evaporator and expansion valve

Communication fault — check wiring and addresses

High pressure fault — check condenser and refrigerant charge

Common questions about Alfa Laval equipment

What other refrigeration brands does AskWhiz cover?

AskWhiz also covers troubleshooting for these manufacturers in the same industry:

3M Accurex AHT Cooling Systems AKO Alco Controls Arneg Aspera BAC Bitzer Bock Carel Carrier Commercial Refrigeration