How do I fix error code 9CA1 on a Samsung dryers?

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Samsung Dryers2024–present

Error Code 9CA1

Q: What does error code 9CA1 mean on a Samsung dryers?

The compressor is getting incorrect voltage Under or over voltage supplied to the dryer; Plug receptacle is used (voltage drop); Main PBA fault (sometimes)

The compressor is getting incorrect voltage

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: 9CA1 / 9CA2

What This Means

Under or over voltage supplied to the dryer; Plug receptacle is used (voltage drop); Main PBA fault (sometimes)

What actually causes this:

A power supply issue affecting the heat pump compressor — may be an outlet problem or internal electrical issue.

First Thing to Check

Check your electrical panel and make sure the dryer's breaker hasn't tripped.

Parts Involved

Main PBACompressor Inverter PBAPower Supply

How to Fix

1
1. Check the consumer's power conditions
2
2. Measure voltage at the internal power terminals during operation
3
3. Eliminate any plug receptacles or extension cords
4
4. If voltage is correct, suspect Main PBA fault

This Error Applies To

Samsung DV25B6800H Series Dryers (2024) (2024–present)

Service manual exact match: DV25B6900HW/A2Service manual exact match: DV90N62632X/EUService manual exact match: DV25B6800HW/ACService manual exact match: DV25B690*H*Service manual exact match: DV25B6800H*Service manual exact match: DV22N6850*