American Dryer Corp AD-310 Phase 7 service manual Phase 7 OPL System Diagnostics

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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 ALLOWACCESS FOR CLEANING, ADJUSTING, INSTALLATION, or TESTING OFANY EQUIPMENT per OSHA(Occupational Safety and HealthAdministration)

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 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 225º F (107º C). LINT DRAWER OPEN - Indicates the lint drawer is open and needs to be closed.

DRY ENABLE FAULT - Indicates the machine is not level and ALL doors are closed. Not ready to start drying. FRONT NOT DOWN - Machine is tilted back.

REAR NOT DOWN - Machine is tilted forward.

BASKET (TUMBLER) OVERLOAD FAULT - Indicates the basket (tumbler) overload has tripped open. FAN OVERLOAD FAULT - Indicates the fan overload has tripped open.

EXHAUST HI-LIMIT FAULT - Indicates the temperature disk in the exhaust has opened. FRONT SAIL SWITCH CLOSED FAULT - Front sail switch is closed and should be open. FRONT SAIL SWITCH OPEN FAULT - Front sail switch is open and should be closed. REAR SAIL SWITCH CLOSED FAULT - Rear sail switch is closed and should be open. REAR SAIL SWITCH OPEN FAULT - Rear sail switch is open and should be closed.

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Contents AD-310 Phase Retain This Manual In a Safe Place For Future Reference Important Note to PurchaserFor Your Safety Page Table of Contents Section Procedure for Functional Check of Replacement AD-310 Reference Guide Base Section Section Explosion could ResultStandards Cleaning LiquidsAT 80 PSI 5.51 Bars Lubrication Every 3 MonthsAdjustments Days After Installation and Every 6 Months ThereafterSpecifications and Dimensions Dimensions Obligation Obligation Installation Requirements ENCLOSURE/AIR SUPPLY/EXHAUST RequirementsOperational Service Check Procedure Electrical and GAS RequirementsHeat Section Direct Spark Ignition DSI System COMPONENTS/FUNCTIONSVAC Direct Spark Ignition DSI Modules 225º F 107º C Thermostat Redundant Gas Valve First Visual Check Second Visual Check Third Visual Check Troubleshooting the Direct Spark Ignition DSI System ManometerPage Page Page First Visual Check Second Visual Check Third Visual Check With a Flame DSI Ignitor/Flame-Probe Assembly Adjustments Page Flash Green Continuously Page With a Flame DSI Ignitor/Flame-Probe Assembly Adjustments Page Light RED Continuously Page Createapotentialsafety Hazard Made of Brass and can be Easily DamagedSteam Coil System Operation General OverviewPage Page Page Page Sprinkler System Description MAN3488 Page Supplies Before Servicing the Dryer Page Page Tilting System Description Page Page Page Page Page AIR JET Assembly Page Blower Squirrel Cage Fan Motor Assembly Page Page Important do not Overtighten V-BELTS Important do not Overtighten V-BELTS Page Page FILTER/REGULATOR Assembly Regulator OperationDoor Systems Manual Doors Automatic Doors Page Page Page Control and Electrical System Ladder Diagram Page Button does not Disable the High Voltage to the Dryer Page ºC + ºC + ºK Page Page Page Page Page Page Tumbler/Drum SECTION. Serious Injury can Result Tumbler/Drum SECTION. Serious Injury can Result Basket Tumbler Drive System Important do not Overtighten Turnbuckle Important do not Overtighten Turnbuckle Page Page Important do not Overtighten Turnbuckle Page Page Page Phase 7 OPL System Diagnostics Inputs RED Outputs Green Fdrc RED L.E.D Lint RED L.E.D 100 101 Troubleshooting Drive motor is not operating does not start Impellor fan motor is not operating does not start 105 106 Dryer operates but is taking too long to dry Excessive noise and vibration 109 Procedure for Functional Check Replacement Components 111 ADC 450049 1- 09/14/00-25
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