What does Guentner error code HT mean?

Error code HT on Guentner equipment indicates high discharge temperature — check superheat settings. Refer to the Guentner service manual for specific diagnostic steps and safety precautions before troubleshooting.

How do I reset a Guentner unit after a fault?

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

Where can I find Guentner service manuals and documentation?

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

Refrigeration

Guentner error codes, decoded.

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

What error codes does Guentner display?

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

High discharge temperature — check superheat settings

Sensor fault — check temperature probe wiring

Compressor overload — check motor current draw

Low pressure fault — check evaporator and expansion valve

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Common questions about Guentner equipment

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