Dexter Laundry T-750 C4 Quick start guide

8533-120-001 9/21
Dexter Commercial Vended Stack Washer Dryer
T-750 C4
Parts & Service Manual
Starting serial number

3
Indicates an imminently hazardous situation, which if
not avoided, will result in death or serious injury.
Indicates a potentially hazardous situation, which if not
avoided could result in death or serious injury.
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may
also be used to alert against unsafe practices. Minor
burns, pinch points that result in bruises and minor
chemical irritation.
Indicates information or a company policy that relates
directly or indirectly to the safety of personnel or protec-
tion of property.
This is the user caution symbol. It indicates a condition
where damage to the equipment resulting in injury to
the operator could occur if operational procedures are
not followed. TO REDUCE THE RISK OF DAMAGE OR
INJURY, refer to accompanying documents; follow all
steps or procedures as instructed.
This is the electrical hazard symbol. It indicates that
there are DANGEROUS HIGH VOLTAGES PRESENT inside
the enclosure of this product. TO REDUCE THE RISK OF
FIRE OR ELECTRIC SHOCK, do not attempt to open the
enclosure or gain access to areas where you are not
instructed to do so. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL ONLY
Caution! There are sharp edges on various sheet metal
parts internal to the enclosure. Use safety consciousness
when placing or moving your hands while working in the
interior of this equipment.
Caution! To reduce the risk of damage to the Water Inlet
Valve, do not supply inlet water with a temperature that
exceeds 70˚ C.
Caution! To reduce the risk of re or explosion, do not
operate this equipment in any hazardous classied
(ATEX) environment.
Equipment Safety Warnings
Symbols and Terminology Used in this Equipment
Part # 8533-120-001 9/21

4
Warning! Do not operate equipment if door glass is
damaged in any way.
Warning! Keep clear of rotating parts.
Prohibited! Do not enter this equipment or space.
Prohibited! Do not step or stand on this equipment.
Prohibited! Do not operate without all guards and covers in
place.
Prohibited! Do not operate without all guards and covers in
place.
Prohibited! Do not wash clothing impregnated with
ammable liquids (petrochemical).
Prohibited! Do not allow children to play in or around
equipment.
Equipment Safety Warnings
Symbols and Terminology Used in this Equipment
Part # 8533-120-001 9/21

5
Indicates an imminently hazardous situation,
which if not avoided, will result in death or seri-
ous injury.
Indicates a potentially hazardous situation,
which if not avoided could result in death or
serious injury.
Indicates a potentially hazardous situation
which, if not avoided, may result in minor or
moderate injury. It may also be used to alert
against unsafe practices. Minor burns, pinch
points that result in bruises and minor chemical
irritation.
Indicates information or a company policy that
relates directly or indirectly to the safety of per-
sonnel or protection of property.
This is the user caution symbol. It indicates a
condition where damage to the equipment re-
sulting in injury to the operator could occur if
operational procedures are not followed. TO RE-
DUCE THE RISK OF DAMAGE OR INJURY, refer
to accompanying documents; follow all steps or
procedures as instructed.
This is the electrical hazard symbol. It indicates
that there are DANGEROUS HIGH VOLTAGES
PRESENT inside the enclosure of this product.
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, do not attempt to open the enclosure or
gain access to areas where you are not instruct-
ed to do so. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL ONLY
Caution! To reduce the risk of re or explosion,
do not operate this equipment in any hazardous
classied (ATEX) environment.
Part # 8533-120-001 9/21

6
•All washers must be installed in accordance to all
applicable electrical, plumbing and all other local
codes.
•These installation and operation instructions are for
use by qualied personnel only. To avoid injury and
electrical shock, do not perform any servicing other
than that contained in the installation and operation
instructions, unless qualied.
Do not install washers in an explosive atmosphere.
•Care must be stressed with all foundation work to
ensure a stable unit installation, eliminating possi-
bilities of excessive vibration.
•Foundation must be level within 13 mm to ensure
proper washer operation.
Do not operate washer if door glass is damaged in
any way.
Do not wash clothing impregnated with ammable
liquids (petrochemical).
WARNING
Part # 8533-120-001 9/21

7
Children should be supervised to
ensure they do not operate or play
in or around equipment.
Keep all panels in place to protect against electrical
shock and injury and add rigidity to washer.
WARNING
This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a
person responsible for their safety.
A washer should not be allowed to operate if any of the following occur:
• Excessive high water level.
• Machine is not connected to a properly earthed circuit.
• Door does not remain securely locked during the entire cycle.
• Vibration or shaking from an inadequate mounting or foundation
Part # 8533-120-001 9/21

8
Warning! Do not operate equipment if door glass is
damaged in any way.
Warning! Keep clear of rotating parts.
Prohibited! Do not enter this equipment or space.
Prohibited! Do not step or stand on this equip-
ment.
Prohibited! Do not operate without all guards and
covers in place.
Prohibited! Do not operate without all guards and
covers in place.
Prohibited! Do not wash clothing impregnated
with ammable liquids (petrochemical).
Prohibited! Do not allow children to play in or
around equipment.
Part # 8533-120-001 9/21

9
Warning! Do not operate equipment if door glass is
damaged in any way.
Warning! Keep clear of rotating parts.
Prohibited! Do not enter this equipment or space.
Prohibited! Do not step or stand on this equip-
ment.
Prohibited! Do not operate without all guards and
covers in place.
Prohibited! Do not operate without all guards and
covers in place.
Prohibited! Do not wash clothing impregnated
with ammable liquids (petrochemical).
Prohibited! Do not allow children to play in or
around equipment.
Prohibited! Do not attempt to open, touch, or pro-
ceed before referring to the manual or unless quali-
ed.
Mandatory! Read all supporting documentation be-
fore operating or maintaining equipment.
Mandatory! Disconnect power before servicing
equipment.
Mandatory! Lock out and tag out before servicing
this equipment.
Mandatory! Disconnect water supply before servic-
ing equipment.
Mandatory! Children should be supervised to ensure
they do not operate equipment.
Part # 8533-120-001 9/21

10
A machine should not be allowed to
operate if any of the following occur:
• Excessively high water level.
• Machine is not connected to a properly grounded
circuit.
• Loading door does not remain securely locked
during the entire cycle.
• Vibration or shaking from an inadequate mounting
or foundation.
Table of Contents
Section 1:
Specications, Mounting Dimensions
Specications.................................................12-15
Dimensions....................................................16-17
Section 2:
Installation & Operating Instructions
Washer Installation ........................................20
Electrical Connections & Fusing Requirements .21
Dryer Installation.................................................22
Dryer Electric, Gas and Venting.....................23-24
Washer Operating Instructions......................25-26
Emergency Stop Button .................................25
Dryer Operating Instructions..............................26
Section 3:
Washer and Dryer Programming Instructions
Rapid Advance Mode......................................30
Washer Price Programming............................32-33
Wash Cycle Programming......................... 34-37
Coin Washer Cycle Parameter Ranges ................
Dryer Programming.......................................46-59
Section 4:
Dryer Service,Troubleshooting and Schematics
Dryer Service Procedures..............................62-68
Dryer Control Fault Codes...................................70
Dryer Troubleshooting Tips........................ 72-75
Dryer Schematics 60hz.............................76-81
Section 5:
Dryer Parts Data......................................83-103
Section 6:
50hz Gas Dryers
50hz Dryer Parts....................................106-110
50hz Dryer Schematics...........................112-113
Section 8:
Washer Service and Troubleshooting
Electronic Coin Drop Acceptor...........................116
Electronic Coin Drop Maintenance.............117-120
Optical Coin Drop Acceptor...............................122
Dexter Safety
Guidelines
FOR SAFETY
1. Always shut o power and water
supply and also discharge capacitors
before servicing.
2. Do not overload the washer.
3. Do not attempt to open door if cylinder
is in motion or contains water.
4. Do not mechanically force or override
door lock in any way.
5. Do not bypass any safety devices of
this washer.
6. Do not use volatile or ammable
substances in or near this washer.
7. Keep all panels in place. They protect
against shock and injury and add
rigidity to the washer.
To activate your warranty, be sure to return
your red warranty form to the factory. Please
have serial number and model ready when
calling for assistance.
WARNING
These washers are equipped with devices and
features relating to their safe operation. To
avoid injury or electrical shock, do not perform
and service, unless qualied to do so.
Part # 8533-120-001 9/21