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SECTION VI
PHASE 7 OPL SYSTEM DIAGNOSTICS
IMPORTANT: YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY and
THE GAS SUPPLY or THE STEAM SUPPLY BEFORE ANY COVERS or
GUARDS ARE REMOVED FROM THE MACHINE TO ALLOW ACCESS
FOR CLEANING, ADJUSTING, INSTALLATION, or TESTING OF ANY
EQUIPMENT per OSHA (Occupational Safety and Health Administration)
STANDARDS.
ALL major circuits, including door, microprocessor temperature sensor, heat and motor circuits are monitored.
The Phase 7 OPL microprocessor controller (computer) will inform the user, via the light emitting diode (L.E.D.)
display of certain failure messages, along with L.E.D. indicators on the Input/Output (I/O) board on the back
panel of the front right control door.
A. DIAGNOSTIC (L.E.D. DISPLAY) FAULT MESSAGES
CALL FOR SERVICE - Indicates a board communication failure.
FRONT DOOR NOT CLOSED - A front door is open when it should be closed.
REAR DOOR NOT CLOSED - A rear door is open when it should be closed.
CHECK CONTROL POWER - Indicates control power is off.
EXHAUST HIGH TEMP FAULT - Indicates the temperature in the basket (tumbler) is above 220º F
(104º C).
LINT DRAWER OPEN - Indicates the lint drawer is open and needs to be closed.
DRY ENABLE FAULT - A signal from the Programmable Logic Controller (PLC) that indicates the dryer is
not level and ALL doors closed. Not ready to start drying.
FRONT NOT DOWN - Dryer is tilted back.
REAR NOT DOWN - Dryer is tilted forward.
TUMBLER OVERLOAD FAULT - Indicates the basket (tumbler) overload has tripped opened.
FAN OVERLOAD FAULT - Indicates the fan overload has tripped opened.
EXHAUST HIGH LIMIT FAULT - Indicates the temperature disk in the exhaust has opened.
FRONT SAIL SWITCH CLOSED FAULT - Front sail switch is closed and should be opened.
FRONT SAIL SWITCH OPEN FAULT - Front sail switch is open and should be closed.