What does Hansen Technologies error code OF mean?

Error code OF on Hansen Technologies equipment indicates oil failure — check oil level and pump pressure. Refer to the Hansen Technologies service manual for specific diagnostic steps and safety precautions before troubleshooting.

How do I reset a Hansen Technologies unit after a fault?

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

Where can I find Hansen Technologies service manuals and documentation?

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

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Hansen Technologies Troubleshooting Assistant

Get instant AI-powered help for Hansen Technologies 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 Hansen Technologies display?

Oil failure — check oil level and pump pressure

Communication fault — check wiring and addresses

Compressor overload — check motor current draw

High discharge temperature — check superheat settings

Sensor fault — check temperature probe wiring

Common questions about Hansen Technologies equipment

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