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Dexter Laundry A Series - User Manual

Dexter Laundry A Series
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8514-296-001 REV K page 1
COMMERCIAL WASHERS
MODELS T-300/350/400/450/600/650/750/900/950/1200/1450/1800
VENDED C-SERIES CONTROL
OPERATOR’S MANUAL
INSTALLATION & OPERATION
INSTRUCTIONS
Please read this information and retain for reference.
WARNING - THIS WASHER IS EQUIPPED WITH DEVICES AND FEATURES RELATING TO ITS SAFE
OPERATION. TO AVOID INJURY OR ELECTRICAL SHOCK, DO NOT PERFORM ANY SERVICING UNLESS
QUALIFIED TO DO SO.
IT IS THE RESPONSIBILITY OF THE OWNER TO CHECK THIS EQUIPMENT ON A FREQUENT
BASIS TO ASSURE ITS SAFE OPERATION.
A machine should NOT be allowed to operate if any of the following occur:
- Excessively high water level.
- If machine is not connected to a properly grounded circuit.
- If the door does not remain securely locked during the entire cycle.
- Vibration or shaking from an inadequate mounting or foundation.
WARNING - SAFETY PRECAUTIONS
- Always shut off power and water supply before servicing.
- Do not overload the washer.
- Do not open door when cylinder is in motion or it contains water.
- Do not bypass any safety devices of this washer.
- Do not use volatile or flammable substances in or near this washer.
- Keep all panels in place. They protect against shock and injury and add rigidity to the washer.
PREVENTIVE MAINTENANCE REQUIREMENTS
DAILY
- Check that the loading door remains securely locked and cannot be opened during an entire
cycle.
- Clean the top, front, and sides of the cabinet to remove residue.
- Clean the soap dispenser and lid and check that all dispenser mounting screws are in-place and
tight.
- Check the loading door for leaks. Clean the door seal of all foreign matter.
- Leave the loading door open to aerate the washer when not in use.
QUARTERLY
- Make sure the washer is inoperative by switching off the main power supply.
- Check the V-belts for wear and proper tension.
- Clean lint and other foreign matter from around motor.
- Check all water connections for leaks.
- Check the drain valve for leaking and that it opens properly.
- Wipe and clean the inside of the washer and check that all electrical components are free of
moisture and dust.
- Remove and clean water inlet hose filters. Replace if necessary.
- Check anchor bolts. Retighten if necessary.
IMPORTANT: Replace any and all panels that were removed to perform daily and/or quarterly
maintenance.

Table of Contents

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Questions and Answers

  • B
    barry02Sep 7, 2025
    What to do if cold water does not enter the tub in wash cycle of my Dexter Laundry A Series?
    • P
      pwallsSep 7, 2025
      If cold water isn't entering the tub during the wash cycle of your Dexter Laundry Washer, start by checking the water valve coil for continuity at the terminals and replace it if there's no continuity. Also, check for 24 VAC (50 Hz) power from the main relay PCB. Inspect the water inlet screens for blockage and clean them if necessary. Ensure that the water supply is turned on and operating correctly. Finally, check the black and white wire at the Molex plug on the main PCB controller P21 connection and at the PCB relay board P20 connection, and examine the pressure switch continuity between terminal contacts. If no continuity, check the pressure switch hose for obstruction. If the hose is okay then change the pressure switch.
  • E
    Eric ChapmanAug 27, 2025
    What causes excessive vibration in Dexter Laundry A Series?
    • A
      Alexis GonzalezAug 27, 2025
      If your Dexter Laundry Washer experiences excessive vibration, check the strength of the mounting structure, concrete, or base, and ensure the mounting bolts are tightened. A worn drive belt or damaged pulleys can also cause vibration and noise, so inspect these components. Be sure you wash recommended load size as specified for washer model (in lb/kg). Small loads contribute to out of balance loading and increase vibration.
  • H
    Heather SmithDec 1, 2025
    Why my Dexter Laundry Washer does not start?
    • D
      David LeeDec 1, 2025
      If your Dexter Laundry Washer does not start, several factors could be at play. Start by examining the power supply, checking circuit breakers, voltage, power leads, and connections, and see if the front display LED shows a dollar amount. Then, check the door switch for continuity when closed; adjust or replace it if there's none. Also, inspect the control breaker or fuse (1.5 amp, or 2.5 amp for T-1200) for continuity, replacing it if needed. Verify the control transformer's voltage output (120VAC), replacing the transformer if incorrect. Make sure that all wire connections of PCB board and Relay PCB are firmly in contact. Check the wiring between PCB, unplug the data cable phone type connectors and VFD and replug with power removed. Finally, confirm 120V power reaches the door solenoid w...
  • K
    kennethyoungSep 13, 2025
    Why Dexter Laundry A Series machine does not turn?
    • L
      Laura WarrenSep 14, 2025
      To troubleshoot why your Dexter Laundry Washer isn't turning, begin by checking the VFD (Variable Frequency Drive). Remove the inspection panel and note any numbers or letters displayed. If there's no display, turn off the power to the machine at the breaker for two minutes, then turn it back on to reset. If the issue persists and there's still no display, consider replacing the VFD.
  • D
    daniel30Sep 23, 2025
    What to do if the door will not open on Dexter Laundry A Series/Dryer?
    • C
      Candace SmithSep 23, 2025
      If the door on your Dexter Laundry Washer/Dryer won't open, check if the thermoactuator(s) and its mechanism are stuck or binding, preventing the door lock solenoid from opening. Ensure the locking thermoactuator isn't receiving 120VAC during the last 1 1/2 minutes of the cycle and that the unlocking thermoactuator is receiving 120VAC during the last minute. If the thermoactuators don't receive voltage at the correct times, change the timer. If the timing and voltage are correct, replace the thermoactuator.
  • A
    Alexis FitzpatrickSep 12, 2025
    What does it mean if my Dexter Laundry A Series machine does not stop?
    • A
      Ashley StevensSep 12, 2025
      If your Dexter Laundry Washer machine does not stop, this could be due to the main PCB, which controls the cycle time and end of cycle. Also, check the braking resistors for continuity and verify the ohms resistance at the braking resistors with the wires removed.
  • M
    mitchellglennSep 4, 2025
    What to do if my Dexter Laundry Washer does not stop?
    • K
      ksmithSep 4, 2025
      If your Dexter Laundry Washer does not stop, remember that the main PCB controls the time cycle at the end of the cycle. Also, check the braking resistors for continuity and verify the ohms resistance by Molex.
  • A
    Andrew JonesNov 23, 2025
    What to do if Dexter Laundry A Series Washer starts but will not advance in the cycle?
    • D
      derek02Nov 23, 2025
      If your Dexter Laundry Washer starts but doesn't advance in its cycle, begin by checking the water valves to ensure they're operating. Look for the illuminated red light on the Input/Output PCB for the water valves (#5, #6, #7, #8) and confirm the board is sending 120VAC to the valve. Replace the valve if it receives 120VAC but doesn't function; otherwise, check the Input/Output PCB. Next, verify the drain valve is closing properly and check for 120VAC to the drain valve from Input/Output PCB red light #4. Replace or clean the drain valve if it receives 120VAC but doesn't close; if there's no voltage, inspect the CPU board, ribbon cable, and I/O PCB. Clear any obstructions from the fill hose or water valve screens. Ensure the water supply is turned on and working. Examine the pressure swit...
  • L
    Lori StevensSep 17, 2025
    Why Dexter Laundry A Series Washer water drains slowly?
    • R
      Ronald HowardSep 17, 2025
      If water is draining slowly from your Dexter Laundry Washer, inspect the hoses and drain valve for any blockages. Ensure the drain size is adequate. If necessary, check the building drains for blockages.
  • J
    John KiddSep 1, 2025
    Why no cold water to tub in wash for Dexter Laundry Washer?
    • K
      Kayla GrahamSep 1, 2025
      If cold water isn't entering the tub during the wash cycle of your Dexter Laundry Washer, start by checking the water valve coil for continuity at its terminals; replace it if there's no continuity. Next, inspect the water inlet screens for blockages and clean them if necessary. Ensure that the water supply is turned on and operating correctly. Check the black or white wires at the Molex plug on the PCB at the main controller and at the relay PCB. Lastly, test the pressure switch for continuity between terminal contacts; if there's no continuity, check the pressure switch hose for obstructions, and replace the switch if the hose is clear.

Dexter Laundry A Series Specifications

General IconGeneral
BrandDexter Laundry
ModelA Series
CategoryWasher
LanguageEnglish

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