What does BAC error code HP mean?

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

How do I reset a BAC unit after a fault?

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

Where can I find BAC service manuals and documentation?

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

Refrigeration

BAC error codes, decoded.

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

What error codes does BAC display?

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

High pressure fault — check condenser and refrigerant charge

Low pressure fault — check evaporator and expansion valve

Communication fault — check wiring and addresses

High discharge temperature — check superheat settings

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Common questions about BAC 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 Aspera Bitzer Bock Carel Carrier Commercial Refrigeration