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Guided Diagnostics
5-10 min · 7 steps

Danfoss AK-PC: Suction Pressure Low (3400)

Diagnose a Danfoss AK-PC low suction pressure alarm — charge, restriction, feed, or a bad transducer.

Run this diagnostic — free
First step

Does the liquid line sight glass show flash gas / bubbles?

Yes — flashing / bubbles
No — solid liquid

This is a preview of the first step. Run the full interactive diagnostic free — it walks you all the way to the likely root cause.

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For qualified refrigeration technicians. Always follow manufacturer procedures and local codes. R-290 (propane) and other flammable refrigerants require A3-rated tools and safety practices.