Sud mean

Maybe this will help, but I'm not sure

Condition:
SUDS LOCK (Overdose of Detergent detected during the Wash Cycle)
The motor control unit senses a suds lock condition by analyzing the current draw on the drive motor. If "Sud" is displayed a potential suds lock is detected. This may signify a bad pump, an extra heavy load, excessive detergent, or excessive suds.

Check:
If too much detergent was used, run the unit through a Rinse/Spin cycle, then a Normal cycle, without adding any detergent. This should clear the unit of the excess detergent.

Check the drain hose and make sure it is not plugged or kinked.
Check Wire Harness connectors to the Drain Pump, Pressure Switch, and Central Control Unit (CCU)
Check/Clean Drain Pump Filter of foreign objects
Check Drain Pump
Check Pressure Switch
Check CCU

Dado

SUDS LOCK (Overdose of Detergent detected during the Wash Cycle)

The motor control unit senses a suds lock condition by analyzing the current draw on the drive motor. If "Sud" is displayed a potential suds lock is detected. This may signify a bad pump, an extra heavy load, excessive detergent, or excessive suds.

Sud: Suds lock (overdose of detergent detected during wash cycle)
The motor control unit senses a suds lock condition by analyzing the
current draw on the drive motor. If "Sud" is displayed a potential Suds
Lock is detected. This may signify a bad pump, an extra heavy load,
excessive detergent, or excessive suds.
Possible causes/procedure:
¦ If too much detergent was used:
-Run the unit through a Rinse/Spin cycle.
-Run a Normal cycle without adding any detergent.
This should clear the unit of the excess detergent.
1. Check the drain hose and make sure it is not plugged
or kinked.
2. Unplug washer or disconnect power.
3. Check wire harness connections to the drain pump,
pressure switch, and Central Control Unit (CCU).

Duet service manual and repair photos HERE

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

SUDS LOCK (Overdose of Detergent detected during the Wash Cycle)
The motor control unit senses a suds lock condition by analyzing the current draw on the drive motor. If "Sud" is displayed a potential suds lock is detected. This may signify a bad pump, an extra heavy load, excessive detergent, or excessive suds.

• If too much detergent was used, run the unit through a Rinse/Spin cycle, then a Normal cycle, without adding any detergent. This should clear the unit of the excess detergent.
• Check the drain hose and make sure it is not plugged or kinked.
• Check Wire Harness connectors to the Drain Pump, Pressure Switch, and Central Control Unit (CCU)
• Check/Clean Drain Pump Filter of foreign objects
• Check Drain Pump
• Check Pressure Switch
• Check CCU

Hi,
SUDS LOCK (Overdose of Detergent detected during the Wash Cycle)
The motor control unit senses a suds lock condition by analyzing the current draw on the drive motor. If "Sud" is displayed a potential suds lock is detected. This may signify a bad pump, an extra heavy load, excessive detergent, or excessive suds.

• If too much detergent was used, run the unit through a Rinse/Spin cycle, then a Normal cycle, without adding any detergent. This should clear the unit of the excess detergent.
• Check the drain hose and make sure it is not plugged or kinked.
• Check Wire Harness connectors to the Drain Pump, Pressure Switch, and Central Control Unit (CCU)
• Check/Clean Drain Pump Filter of foreign objects
• Check Drain Pump
• Check Pressure Switch
• Check CCU

Thank You