What does Coldex error code HP mean?

Error code HP on Coldex equipment indicates high pressure fault — check condenser and refrigerant charge. Refer to the Coldex service manual for specific diagnostic steps and safety precautions before troubleshooting.

How do I reset a Coldex unit after a fault?

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

Where can I find Coldex service manuals and documentation?

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

Refrigeration

Coldex error codes, decoded.

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

What error codes does Coldex display?

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

High pressure fault — check condenser and refrigerant charge

Sensor fault — check temperature probe wiring

Compressor overload — check motor current draw

Low pressure fault — check evaporator and expansion valve

Communication fault — check wiring and addresses

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Common questions about Coldex equipment

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