Admiral Washer Error Codes

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📋 Error Code Index — Admiral Washer

F01 Main Control Board Failure F11 Serial Communication Error F21 Long Drain Time F35 Analog Pressure Sensor Failure F51 Motor RPS Failure SUD Excess Suds Detected

F01

Main Control Board Failure

Main electronic control board has detected an internal fault and cannot continue operating.

High Priority

Possible Causes
Control board component failure due to age or heat
Power surge damage to board circuitry
Diagnostic Steps
1Disconnect power for 60 seconds and retry
2Inspect board for visible burn marks or damage
3Replace main control board if fault persists

F11

Serial Communication Error

Communication fault between main control board and motor control board.

High Priority

Possible Causes
Wiring harness connection loose between boards
Motor control board failed
Main control board failed
Diagnostic Steps
1Check wiring harness connections at both control boards
2Power cycle unit 60 seconds
3Replace motor control board or main board as indicated by testing

F21

Long Drain Time

Appliance did not drain within the allowed time limit — water remaining in drum.

Medium Priority

Possible Causes
Drain pump filter blocked with debris — most common cause
Drain hose kinked or improperly routed
Drain pump motor failed
Diagnostic Steps
1Clean drain pump filter — remove all lint, coins, and debris
2Check drain hose for kinks and proper routing to house drain
3Test drain pump motor continuity and replace if failed

F35

Analog Pressure Sensor Failure

Water level analog pressure sensor reading outside expected range — water level cannot be verified.

Medium Priority

Possible Causes
Pressure sensor failed internally
Pressure hose kinked or disconnected from sensor port
Air dome on tub blocked with detergent residue
Diagnostic Steps
1Check pressure hose connection at sensor and at tub air dome
2Clear any blockage from air dome port on tub
3Test pressure sensor and replace if reading is out of range

F51

Motor RPS Failure

Rotor position sensor not providing signal to motor control board — motor speed cannot be monitored.

Medium Priority

Possible Causes
RPS sensor failed internally
Wiring to RPS sensor open or shorted
Motor control board fault
Diagnostic Steps
1Check RPS sensor wiring harness for damage or loose connection
2Test RPS sensor resistance per service manual specifications
3Replace RPS sensor if reading is out of specification

SUD

Excess Suds Detected

Excessive suds detected in drum — cycle paused to allow suds to dissipate before continuing.

Low Priority

Possible Causes
Non-HE (high-efficiency) detergent used in HE washer
Too much HE detergent used per load
Detergent residue buildup in dispenser drawer
Diagnostic Steps
1Use only HE-rated detergent — check package for HE symbol
2Reduce detergent quantity — less is more in HE machines
3Run a Rinse & Spin cycle to clear remaining suds
4Clean detergent dispenser drawer regularly

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Important Notice: Washer error code information on this page is based on manufacturer service documentation. Always disconnect power and water supply before inspecting internal components. Fault behavior and diagnostic steps may vary by model and production date. When in doubt, contact a certified appliance technician. AppliancesCare Appliance Repair LLC provides this information for educational purposes only.