The SUDS or SUD error can be caused by too much detergent, improper detergent, drain pump/drain line problem, or pressure switch malfunction.
1. If you are not using HE detergent, you need to be. These washers are designed to use HE detergent which is formulated for wash tubs that use 5 to 7 gallons of water. If you use regular detergent, you are, in affect, placing a higher concentration of detergent in the washer that is normally formulated for wash tubs that have a 35 gallon capacity. The manufacturer should have a disclaimer in the owner's manual explaining this. In most cases this will also void your warranty. NOTE: Prolonged use of the wrong detergent can damage the drain pump components and or wash tub seals.
If you are using the correct detergent, double check the label to make sure it is not double (2X) or triple (3X) concentrated. You could still be placing too much soap in your wash.
To get rid of excessive detergent, place the washer on a RINSE & SPIN cycle, then run it through a normal wash cycle with NO detergent added. You may have to repeat these steps depending on the amount of detergent used.
2. If you do not have a detergent issue, double check the drain pump and drain lines to ensure they are not obstructed in any way. Click HERE for step-by-step instructions:
Obstructions in the drain pump and/or drain lines can attribute to air getting trapped in the drain pump and cause the error code. Double check all electrical connections to the drain pump and Central Control Unit (CCU). You will need to remove the top panel of the washer to access the CCU. This is accomplished by removing the three screws in the back of the washer that hold the top panel in place. With the screws removed, slide the panel back, then off. The CCU is located directly behind the wash tub in the center of the washer. The Drain Pump connector will be the 6th connector (facing from the front L to R) in the center of the CCU.
3. Check the Pressure Switch to ensure it is good. The Pressure Switch is located to the right of the CCU as you are looking from the front. It is a small cylindrical shaped device with a connector plug and an air hose attached. The switch can be checked at several water levels by removing the plug and taking resistance readings at the connector pins. Readings are as follows:
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Pins are numbered R to L facing the from the REAR
Pins 1 to 2 SUDS Detect = 0 ohms
Pins 3 to 4 Overflow = 0 ohms
Pins 4 to 5 L1 = 0 ohms
Pins 4 to 6 Empty = 0 ohms
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SUDS DETECTION
During Drain Routine
During the Drain Routine, the water level is checked continuously. Normal drain will occur until the
pressure switch senses no water in the wash tub and there is no foam (suds). The drain pump will
operate an additional 15 seconds after the pressure switch reports no water or foam.
If the drain routine operates for four (4) minutes and the pressure switch senses any foam (suds) in
the wash tub, the Central Control Unit will start the "Kill-Foam" Routine. (See description of this
Routine below.) After the Kill-foam Routine is concluded, the Drain Routine will restart. If, after
four (4) minutes the pressure switch still senses foam in the wash tub, the Central Control Unit will
go into Failure Mode. The digital display will show, F02.
During Spin (Extract) Routine
During the Spin/Extract Routine the water level is checked continuously. If, during this routine, the
pressure switch senses the presence of foam (suds) in the wash tub, the Central Control Unit will
stop the drive motor and the basket will stop spinning. The electronic control will count the number
of spin repetitions that are attempted due to foam (suds). There are a maximum of three (3)
attempts for each Spin/Extract Routine.
Kill-Foam Routine
1. The Remaining Time counter is stopped.
2. The digital display shows Sud.
3. The Drain Pump is turned OFF.
4. The Central Control Unit will fill the wash tub with 1 gal. (4 L) of cold water.
5. While the tub is filling the basket will tumble 1 sec. ON/15 Sec. OFF.
6. Once the tub is filled, the drive motor will turn OFF and the basket will rest without any
movement for five (5) minutes.
7. After the five (5) minute rest, the remaining time counter will restart and the digital display
will show the remaining time left in the routine.
NOTE: If the Kill-Foam routine was initiated during a Spin/Extract Routine, the tumbling action
will be reduced to a cycle of 3 sec. ON/13 sec. OFF. If, at the end of either the Drain or Spin/
Extract Routines, a suds condition still remains, the digital display will show Sud.
Sud will also be displayed for a short period at the end of a cycle, if a Suds condition was
detected during the cycle. This will alert the consumer to reduce the amount of detergent in
subsequent uses.
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