Error Code AC
The washer's control boards cannot communicate with each other
Moderate
Address soon - your appliance may not work properly
Also displayed as: AC (upper) / AC (lower)
What This Means
Signals between the sub and main PBAs are not sensed; Communication error between sub PBA and main PBA; Incorrect or loose connector connections between sub and main PBAs; Faulty soldering on sub PBA control panel; Sub PBA short-circuited because of moisture; Main PBA communication circuit is faulty
What actually causes this:
A loose wire connection or moisture got into the control panel, disrupting the signal between boards
First Thing to Check
Turn off the washer at the circuit breaker, wait 60 seconds, then turn it back on
Parts Involved
How to Fix
- 1
1. Check the wire connections and terminal contacts between the sub and main PBAs
- 2
2. Check for incorrect connections and disconnected wires
- 3
3. Remove the sub PBA C/Panel and check for any faulty soldering
- 4
4. Check whether the sub PBA is short-circuited because of moisture
- 5
5. If the main PBA's communication circuit is faulty, replace it
This Error Applies To
Samsung WV55M9600A Series Washers (2024) (2024–present)
Related Error Codes
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