Error Code 9CA1

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-voltage condition at power supply; Over-voltage condition at power supply; Plug receptacle used causing 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

    1. Check consumer power conditions and operating voltage

  2. 2

    2. Connect a tester to internal power terminals during operation

  3. 3

    3. Check whether a plug receptacle is used

  4. 4

    4. If voltage is normal, check main PBA

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