What does Aspera error code OL mean?

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

How do I reset a Aspera unit after a fault?

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

Where can I find Aspera service manuals and documentation?

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

Refrigeration

Aspera error codes, decoded.

Look up any Aspera fault code below. Each one is grounded in Aspera's own service documentation — the meaning, the symptoms, the causes, and the steps to clear it.

By Octavian Ghindea

Co-founder & CTO · Reviewed August 2026

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Aspera sits in our Refrigeration coverage. Every page here is transcribed from the manufacturer's manuals, not scraped from forums.

What error codes does Aspera display?

Tap a code for the full breakdown — meaning, symptoms, causes, and fix steps.

Compressor overload — check motor current draw

High pressure fault — check condenser and refrigerant charge

Communication fault — check wiring and addresses

High discharge temperature — check superheat settings

Sensor fault — check temperature probe wiring

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Common questions about Aspera equipment

Other Refrigeration brands we cover

AskWhiz documents error codes for these manufacturers in the same vertical:

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