What does Grasso error code SC mean?

Error code SC on Grasso equipment indicates sensor fault — check temperature probe wiring. Refer to the Grasso service manual for specific diagnostic steps and safety precautions before troubleshooting.

How do I reset a Grasso unit after a fault?

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

Where can I find Grasso service manuals and documentation?

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

Refrigeration

Grasso error codes, decoded.

Look up any Grasso fault code below. Each one is grounded in Grasso'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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Grasso sits in our Refrigeration coverage. Every page here is transcribed from the manufacturer's manuals, not scraped from forums.

What error codes does Grasso display?

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

Sensor fault — check temperature probe wiring

Oil failure — check oil level and pump pressure

High discharge temperature — check superheat settings

Low pressure fault — check evaporator and expansion valve

Communication fault — check wiring and addresses

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Common questions about Grasso equipment

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