American Dryer Corp. Phase 6 Microprocessor Controls ML-190HS Page 52 Service Manual Download

Page: 52 / 63

C. L.E.D. CODES

1. Display Codes

SLOPE FACTOR

ALL REV

ALWAYS REVERSING

ANTI WRINKL dELAY TIME

ANTI-WRINKLE DELAY TIME

ANTI WRINKL GUARd ACTIVE

ANTI-WRINKLE PROGRAM ACTIVE

ANTI WRINKL GUARd ON TIME

ANTI-WRINKLE GUARD ON TIME

AUTO CYCLE

AUTOMATIC MODE

HEAT LOSS (OFF SET) FACTOR

bURNER CONTROL FAIL

GAS ONLY ... POWER (24VAC) IS NOT EVIDENT AT GAS VALVE

bURNER FLAME FAIL

NO BURNER FLAME SENSED

bURNER SAFETY FAIL

GAS/ELECTRIC ONLY ... BURNER/OVEN OPEN HI-LIMIT CIRCUIT

bUZZ

BUZZER (TONE)

bUZZ TIME

BUZ TIME

ºCEL

DEGREE IN CELSIUS

CHECK MAIN FUSE

MAIN FUSE FAILURE

CLEAN LINT

PROMPT TO CLEAN LINT SCREEN, DRYER CYCLE LOCKOUT

COOL

COOL DOWN CYCLE IN PROGRESS

COOL TIME__M

COOL DOWN TIME

COOL TEMP___

COOL DOWN TEMPERATURE

CYCLEA

PREPROGRAMMED CYCLE A

CYCLEb

PREPROGRAMMED CYCLE B

CYCLEC

PREPROGRAMMED CYCLE C

CYCLEd

PREPROGRAMMED CYCLE D

CYCLEE

PREPROGRAMMED CYCLE E

CYCLEF

PREPROGRAMMED CYCLE F

dONE

DRYING or COOLING CYCLE COMPLETE OR DRYER IN ANTI-WRINKLE MODE

dRYING

DRYING CYCLE IN PROGRESS

dRY LEVEL___

DRYNESS LEVEL (PERCENTAGE OF EXTRACTION) (NUMERICAL VALUE)

dRY TEMP F___

DRYING TEMPERATURE

dRY TIME__M

LENGTH OF DRYING CYCLE

dRUM SAFETY FAIL

TUMBLER (BASKET) HI-LIMIT CIRCUIT IS OPEN

ELAPSE TIME___MIN

CYCLE DISPLAY TIME

ELECTRIC

SPECIFIC HEAT TYPE OF DRYER ... ELECTRICALLY HEATED

FABRIC TEMPERATURE

ºFAR

DEGREE IN FAHRENHEIT

FLASH

FLASH DISPLAY ACTIVE

GAS

SPECIFIC HEAT TYPE OF DRYER ... GAS HEATED

HOT

INDICATES AN OVERHEAT CONDITION

LINT dOOR

LINT DRAWER / DOOR CIRCUIT IS OPEN OR FAULT IN THE A.C. SWITCH CIRCUIT

LINT COUNT

DRYING CYCLES RANGE FROM 1-10 CYCLES BEFORE CLEAN LINT DISPLAY

__M REMAIN

CYCLE DISPLAY TIME

MAIN dOOR

DOOR CIRCUIT IS OPEN OR FAULT IN THE A.C. DOOR SWITCH CIRCUIT

MANUAL CYCLE

MANUAL MODE

MAX ANTI WRINKL GUARd

MAXIMUM GUARD TIME

NFLASH

FLASH DISPLAY NOT ACTIVE

NoAIR FLOW

SAIL SWITCH OPEN

NoANTI WRINKL GUARd

ANTI-WRINKLE PROGRAM IS NOT ACTIVE

NoBUZZ

NO BUZZER (TONE)

NoHEAT

GAS ONLY ... IGNITION ATTEMPT FAILURE

NoREV

NO REVERSE

No ROTATE SENSOR

NO ROTATIONAL SENSOR SELECTED

PROGRM

PROGRAM MODE

REAdY

NO CYCLE IN PROGRESS

ROTATE SENSOR ACTIVE

ROTATIONAL SENSOR SELECTED

ROTATE SENSOR FAIL

ROTATIONAL SENSOR CIRCUIT FAILURE

__RPM

MONITORS TUMBLER (BASKET) RPM WITH ROTATIONAL SENSOR CIRCUIT ACTIVE

SAIL SWITCH FAIL

GAS/ELECTRIC ONLY. ATTEMPT MADE TO START DRYER WITH SAIL SWITCH
DISABLED IN CLOSED POSITION

SELREV.

SELECT REVERSE

SPIN TIME

START GUARd

START ANTI WRINKLE GUARD CYCLE

STEAM

SPECIFIC HEAT TYPE OF DRYER ... STEAM HEATED

STOP TIME

TEMP SENSOR FAIL CHECK

FAULT IN M.P. HEAT SENSING CIRCUIT

TEMP SENSOR FUSE

Summary of Contents for Phase 6 Microprocessor Controls ML-190HS

Page 1: ...rvice Manual Phase 6 Microprocessor Controls 112999SL tcosta ADCPartNo 450410 American Dryer Corporation 88 Currant Road Fall River MA02720 4781 Telephone 508 678 9000 Fax 508 678 9447 E mail techsupport amdry com ...

Page 2: ...or or the ADC factory When ordering replacement parts from the factory you can FAX your order to ADC at 508 678 9447 or telephone your orders directly to the ADC Parts Department at 508 678 9000 Please specify the dryer model number and serial number in addition to the description and part number so that your order is processed accurately and promptly The illustrations on the following pages may n...

Page 3: ...INE OR OTHER FLAMMABLE VAPOR AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE FOR YOUR SAFETY DO NOT DRY MOP HEADS IN THE DRYER DO NOT USE DRYER IN THE PRESENCE OF DRY CLEANING FUMES CHILDREN SHOULD NOT BE ALLOWED TO PLAY ON OR NEAR THE DRYERS WARNING CHILDREN SHOULD BE SUPERVISED IF NEAR DRYER S IN OPERATION DRYERS SHOULD NEVER BE LEFT UNATTENDED WHILE IN OPERATION CAUTION WARNING The d...

Page 4: ...ncluded with the dryer Dryers must not be installed or stored in an area where it will be exposed to water or weather The wiring diagram for the dryer is located in the front electrical control box area DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTER OR SCREEN IN PLACE EVEN IF AN EXTERNAL LINT COLLECTION SYSTEM IS USED WARNING ...

Page 5: ...ck Procedure 8 SECTION IV DESCRIPTION OF PARTS 10 A Control Panel Microprocessor 10 B ControlBox 10 C HSI Module Gas Models Only 10 D GasBurnerAssembly 11 E DriveMotor 11 F Blower Motor and Impellor Gas and Steam 11 G SpeedReducingShaft 12 H Tumbler Basket BearingArrangement 12 I Tumbler Basket 12 J MainDoorSwitch 13 K Sail Switch GasModelsOnly 13 L Hi Limit GasModelsOnly 13 M ManualResetThermosta...

Page 6: ...SECTION VIII PHASE 6 OPL SYSTEM DIAGNOSTICS 42 A Diagnostic L E D lightemittingdiode Display FailureCodes 42 B L E D lightemittingdiode DisplayIndicators 44 C Phase 6 OPL Microprocessor Controller Relay Output L E D light emitting diode Indicators 45 SECTION IX L E D DISPLAY CODES 46 A L E D lightemittingdiode DisplayOperatingStatus 46 B Phase 6 OPL Microprocessor L E D light emitting diode Displa...

Page 7: ...sene paint or wax WARNING DO NOT dry mop heads Contamination by wax or flammable solvents will create a fire hazard WARNING DO NOT use heat for drying articles that contain plastic foam sponge rubber or similarlytexturedrubberlikematerials Dryinginaheatedtumbler basket maydamage plastic or rubber and also may be a fire hazard 5 A program should be established for the inspection and cleaning of lin...

Page 8: ...ry cleaning solvents or fumes 10 Read and follow ALL caution and direction labels attached to the dryer WARNING CHILDREN SHOULD NOT BEALLOWED TO PLAY ON or IN THE DRYER S CHILDREN SHOULD BE SUPERVISED IF NEAR DRYER S IN OPERATION 11 DO NOT operate dryers with more than 125 PSI steam pressure Excessive steam pressure can damage steam coil and or harm personnel 12 Replace leaking flexible steam hose...

Page 9: ...LEAR and FREE FROM COMBUSTIBLE MATERIALS GASOLINE and OTHER FLAMMABLEVAPORS and LIQUIDS NOTE Suggested time intervals shown for average usage which is considered six 6 to eight 8 operational running hoursperday Clean lint drawer screen every third or fourth load NOTE Frequency can best be determined at each location DAILY beginning of each work shift Clean lint from the drawer screen Inspect lint ...

Page 10: ...et s avoid using harsh abrasives Aproduct intended for the cleaningofappliancesisrecommended B ADJUSTMENTS 7 DAYS AFTER INSTALLATION and EVERY 6 MONTHS Inspect bolts nuts screws bearing set screws nonpermanent gas connections unions shut off valves orifices and grounding connections Motor and drive belts should be examined Cracked or seriously frayed belts should be replaced Tighten loose V belts ...

Page 11: ...adversely affected Ignition problems and sail switch fluttering problems on gas dryers may result and you also could have premature motor failure from overheating The air supply must be given careful consideration to insure proper performance of each dryer IMPORTANT Make up air must be provided from a source free of dry cleaning fumes Make up airthatiscontaminatedbydrycleaningfumeswillresultinirre...

Page 12: ...de by changing the burner orifices If this adjustment is necessary contact the distributor who sold the dryer or contact the factory NOTE Any burner changes mustbemade by a qualified technician C OPERATIONAL SERVICE CHECK PROCEDURE 1 Turn on electric power to the dryer 2 To start dryer a Display will read READY b Press E on the keyboard touchpad of microprocessor controller computer c The dryer wi...

Page 13: ...d be operated through one complete cycle to assure that no further adjustments are necessary and that ALL components are functioning properly 8 Check the electric service phase sequence While the dryer is operating check to see if the blower wheel is rotating in the proper direction Looking from the front the blower wheel should spin in the clockwise CW direction If so the phasing is correct If th...

Page 14: ...arts throughout the machine B CONTROL BOX Lifting the control door and opening the computer panel will reveal the control box Inside the control box are ALL the electronic control components Located on the back of the control box is the computer Included in the control box are the 30 position terminal block fuse block and transformer C HSI MODULE Gas Models ONLY The HSI Hot Surface Ignition system...

Page 15: ... is located E DRIVE MOTOR The T E F C Totally Enclosed Fan Cooled drivemotorislocatedapproximatelyintheright front hand corner of the dryer It sits on an adjustable base so that the motor can be easily adjusted to the left or right The drive motor is a 3 HP motor and operates on 208 to 460 volts 50 60 Hz 3 phase 3ø F BLOWER MOTOR and IMPELLOR GAS and STEAM The impellor is shaft driven The blower m...

Page 16: ...nsion can be adjusted H TUMBLER BASKET BEARING ARRANGEMENT The tumbler basket bearing arrangement is located viewing from the rear of the dryer approximately at the upper center of the dryer The arrangement consists of a bearing cap rotational sensor and a flange bearing which serve to support the tumbler basket I TUMBLER BASKET The tumbler basket consists of four 4 ribs and four 4 perforated pane...

Page 17: ...nside the burner box and this negative pressure pulls in the round damper and activates the sail switch If there is improper airflow the damper will not pull in preventing the burner from starting Improper airflow can be caused by improperly designed exhaust ducting where the duct run is too long or has too many sharp bends in it It can also be caused by a lack of make up air L HI LIMIT GAS MODELS...

Page 18: ...he lint drawer is a pullout type and is located at the bottom of the dryer in the lint compartment Simply grab the lint drawer handle slide out the drawer brush off the lint and slide the drawer back in The lint screen must be kept clean in order for the dryer to operate properly and efficiently O LINT DRAWER SWITCH The lint drawer switch is located in the lint compartment and attached to the side...

Page 19: ...ow either through the coil for heat or under the coil for cool down Air supply is 80 PSI 10 PSI Q COMPRESSED AIR REQUIREMENTS The dryer requires an external supply of air 2 5 cfm 80 psi on the steam models the air is necessary to operate the damper system On both steam as well as the gas model the air is necessary required for the blower air jet operation to clean lint from the impellor fan squirr...

Page 20: ...ce for use by an untrained person making repairs Service work should be performed by competent technicians in accordance with local state and federal codes When contacting the factory for assistance always have the dryer model and serial numbers available CAUTION ObserveALLsafety precautions displayed on the dryer or specified in this manual before andwhilemakingrepairs Before considering replacem...

Page 21: ...Computer Operator s Manual for details NOTE The A and B factors are printed on a label located on the rear of the control panel refer to illustration 8 Reestablish electrical power to the dryer To Replace Keyboard Touchpad Label Assembly 1 Discontinue electrical power to the dryer 2 Unplug keyboard touchpad ribbon from rear of computer 3 Slowly peel off and remove keyboard touchpad label assembly ...

Page 22: ...emove modular bracket connector wires and probe from bracket assembly 6 Install new sensor probe assembly ADC P N 880251 by reversing procedure 7 Reestablish electrical power to the dryer NOTE If when power is reestablished the computer display reads Temp Sensor CheckTemp Sensor Fuse check for a loose connection in the wiring B IGNITION CONTROLS To Remove HSI Hot Surface Ignition Ignitor 1 Discont...

Page 23: ...o To Replace Gas Valve and follow Step 1 through Step 6 2 Unscrew main burner orifices and replace NOTE Use extreme care when removing and replacing orifices These orifices are made of brass and are easily damaged 3 Reversing the removal procedure for reinstalling NOTE Test ALL connections for leaks by brushing on a soapy water solution WARNING NEVER TEST FOR LEAKS WITHAFLAME To Test and Adjust Ga...

Page 24: ...eter etc To Convert from Natural Gas to L P Gas NOTE ALL dryers are sold as natural gas unless otherwise specified at the time the dryer order was placed For L P gas the dryer must be converted as follows 1 Refer to Replace Gas Valve and follow Step 1 through Step 6 2 Remove the four 4 screws which secure the top cap assembly This assembly contains the regulator adjustment screw and the terminal c...

Page 25: ...NING Test ALL connections for leaks by brushing on a soapy water solution WARNING NEVER TEST FOR LEAKS WITHAFLAME To Replace HSI Hot Surface Ignition Module 1 Discontinue electrical power to the dryer 2 Remove the wires connected to the terminal strip at the bottom of the module 3 Remove the two 2 pal nuts securing the module to the mounting bracket 4 Replace module by reversing procedure 5 Reesta...

Page 26: ...T UNDER NO CIRCUMSTANCES should heat safety devices be disabled 1 Discontinue electrical power to the dryer 2 Remove lint drawer Remove two 2 screws securing lint door and remove lint door 3 Locate sensor bracket assembly and loosen the two 2 Phillips head screws securing bracket assembly to the tumbler basket wrapper NOTE DO NOT remove the screws 4 Remove bracket assembly by slightly sliding brac...

Page 27: ... switch away from the burner The sail switch should open and extinguish the burner Let the sail switch damper return to the burner wall The sail switch should close to restart the burner ignition cycle If the sail switch circuit does not operate as described bend the actuator arm of the sail switch accordingly until proper operation is achieved To check proper open position of sail switch open mai...

Page 28: ...d of silicone ADC P N 170730 ALL around main door area where glass will rest 6 Install glass onto door adhesive and slightly press glass in place IMPORTANT DO NOT press hard or silicone thickness between the glass and door will be reduced resultinginpoorbonding 7 Secure the four 4 10 32 Acorn nuts to hold the glass 8 The door assembly should now be put in an area where it will not be disturbed for...

Page 29: ... door assembly 3 Remove bottom hinge block by removing the two 2 1 4 20 screws 4 Reassemble by reversing removal procedure 5 Reestablish electrical power to the dryer F PULLEYS To Replace Drive Shaft Pulley 1 Discontinue electrical power to the dryer 2 Remove the lint drawer 3 Remove the lint door 4 Remove right lint coop wall 5 LoosenV belts then rotate pulley and rollV belts out of its grooves 6...

Page 30: ...hten evenly until bushing becomes loose on shaft Refer to figure A on page 25 8 Remove bushing pulley and key 9 Assemble bushing and sheave as shown in figure B When cap screws are loosely inserted bushing remains fully expanded to provide a sliding fit on the shaft 10 Insert key on the shaft then slide sheave to desired position with cap screw heads to the outside 11 Tighten cap screws progressiv...

Page 31: ...s gap should measure from 1 8 to 1 4 Proper cap screw torque is 15 ft lbs If greater tightening forces are applied excess pressures will be created in the hub of the mounted sheave which may cause it to crack To Replace Motor Pulley 1 Discontinue electrical power to the dryer 2 Remove the lint drawer 3 Remove the lint door 4 LoosenV belts then rotate pulley and rollV belts out of its grooves 5 Rem...

Page 32: ...bler basket The bolts should be tightened in even increments in order to ensure that the shaft runs parallel with the base of the dryer IMPORTANT Side to side adjustment of the tumbler basket should be equal on either side of the front panel but vertically the top of the tumbler basket should have a larger gap than the bottom to compensate for the load IMPORTANT Be sure to tighten the left idler s...

Page 33: ...nt drawer 3 Remove the lint door 4 Loosen and roll V Belts off that connect speed reducing shaft to drive shaft 5 Loosen and roll V belts off that connect speed reducing shaft to the drive motor 6 Remove retaining ring that is located closest to the front rear bearing 7 Remove the four 4 bolts holding the two 2 speed reducing shaft pillow block assembly in the dryer 8 Loosen and remove the two 2 s...

Page 34: ...the arms of a bearing puller 7 Using a bearing pulley remove the flange bearing 8 Replace by reversing Step 3 through Step 6 9 Adjust both lateral and vertical tumbler basket alignment Check both the vertical and lateral adjustment of the tumbler basket 10 Reestablish electrical power to the dryer To Replace Front Drive Shaft Pillow Block Bearing 1 Discontinue electrical power to the dryer 2 Remov...

Page 35: ...6 Remove bolts holding each idler pillow block bearing to mount 7 Remove idler shaft with both bearings and wheel still attached from dryer 8 Remove the retaining ring closest to the front bearing 9 Remove drive wheel a Remove cap screws from bushing b Insert cap screws in tapped removal holes and tighten evenly until bushing becomes loose on shaft c Remove bushing pulley and key 10 Slide bearing ...

Page 36: ...the front of the dryer If the tumbler basket cannot be removed freely clean the shaft area and spray WD 40 or similar lubricant With a block of wood against the shaft end strike the block wood with a hammer or mallet to move the shaft past any burrs made by the set screws IMPORTANT Neverstriketheshaftdirectlywitha hammer 6 Reverse these steps for installation of new tumbler basket and tumbler bask...

Page 37: ...After tensioning theV belts check to make sure both the drive shaft and speed reducing are parallel or level to the base of the dryer V Belt Tension Adjustment Motor To Speed Reducing Shaft 1 Discontinue electrical power to the dryer 2 Remove the lint drawer 3 Remove the lint door 4 Loosen two 2 bolts securing front bearing on speed reducing shaft 5 Loosen tension bolt that is under the front bear...

Page 38: ...motor 9 Reverse these steps to replace drive motor To Replace Impellor Motor Fan Shaft Drive 50 60 Hz Gas and Steam Models 1 Discontinue electrical power to the dryer 2 Remove the lint drawer 3 Remove the lint door 4 Remove the left hand lint wall 5 Loosen the four 4 mounting bolts securing the motor 6 Loosen the tension bolts 7 Remove V belts 8 Disconnect motor wiring 9 Remove the motor pulley an...

Page 39: ...acing 8 Reverse the procedures to reinstall new bearing L IMPELLOR 1 Discontinue electrical power to the dryer 2 Remove the left side lint wall if necessary for easier access 3 Remove the six 6 nuts securing the inlet cone to the blower housing 4 Remove the two 2 left handed jam nuts that hold the impellor to the fan shaft 5 Remove the impellor washers and the key 6 Replace the impellor key washer...

Page 40: ...sconnect both 4 pin connectors at the rear of the lint switch cover 4 Remove the one 1 or two 2 screws holding the lint switch cover on 5 Remove lint switch cover and disconnect the two 2 terminals of the switch 6 Remove switch by pressing tabs together and push switch out 7 Install new switch by reversing procedure ...

Page 41: ...ry The information provided should not be misconstrued as a handbook for use by an untrained person making repairs IMPORTANT When replacing blown fuses the replacementmust be of the exact rating as the fuse beingreplaced WARNING ALL SERVICE and TROUBLESHOOTING SHOULD BE PERFORMED BYA QUALIFIED PROFESSIONALor SERVICEAGENCY WARNING WHILE MAKING REPAIRS OBSERVE ALL SAFETYPRECAUTIONS DISPLAYED ON THE ...

Page 42: ...SI Hot Surface Ignition module 2 Failed blower motor contactor 3 Faulty HSI Hot Surface Ignition ignitor 4 Faulty gas valve F Dryer operates glo bar lights but gas does not flow 1 Dryer gas shut off valve is closed 2 Failed gas valve open coil in valve 3 Loose wiring connection from HSI Hot Surface Ignition module to gas valve Check voltage at gas valve 4 Failed HSI Hot Surface Ignition module G D...

Page 43: ...pressure atmosphere 7 The supply gas may have a low heating value check with local gas supplier 8 Failed temperature sensor temperature calibration is incorrect 9 Failed microprocessor controller computer I Thermal overload for drive motor is tripping 1 Either an exceptionally low or high voltage supply 2 Motor bearing failure 3 Bearing failure in drive system 4 Failed motor 5 Insufficient make up...

Page 44: ...obe 3 Open circuit in either one of two 2 wires leading from the sensor probe to the computer a Connection at sensor bracket assembly connector b Connection at computer harness connector M Dryer does not start Display reads Lint Door 1 Lint drawer is open 2 Faulty lint door switch 3 Open circuit in lint drawer switch harnesses N There is excessive vibration coming from the tumbler basket 1 Tumbler...

Page 45: ...lt where electrical components are concerned not necessarily the suspect component itself ELECTRICAL PARTS SHOULD ALWAYS BE CHECKED FOR FAILURE BEFORE BEING RETURNED TO THE FACTORY The information provided should not be misconstrued as a device for use by an untrained person in making repairs Only properly licensed technicians should service the equipment OBSERVE ALL SAFETY PRECAUTIONS DISPLAYED O...

Page 46: ...o heat for three 3 minutes or until the temperature drops below 100º F Upon failure the machine will shut down and display bURNER SAFETYFAIL with an audio indication 4 dRUM SAFETYFAIL this routine monitors the tumbler basket temperature if the tumbler basket Hi Limit switch opens prior or during the cycle while the heat was on the machine will display dRUM SAFETYFAIL The machine will continue to r...

Page 47: ...Key and it will continue the programmed cycle 10 TEMP SENSOR FAIL CHECK TEMP SENSOR FUSE this routine monitors the tumbler basket temperature When the temperature sensor or fuse opens with the machine not active the display will read TEMP SENSOR FAIL CHECK TEMP SENSOR FUSE with an audio indication If the machine was active at the time that the temperature sensor or fuse opened the display would re...

Page 48: ... NOT necessarily mean that the outputs are functioning They are only indicating that the function output should be active on 1 L E D DISPLAY INDICATOR NUMBER 1 a For Optional Reversing Models 1 This indicator dot is on when the drive tumbler basket motor is operating in the forward mode clockwise CW direction 2 L E D DISPLAY INDICATOR NUMBER 2 a For Optional Reversing Models 1 This indicator dot i...

Page 49: ...ARD REV REVERSE AIR AIR JET HT1 HEAT OUTPUT There are a series of seven 7 L E D light emitting diode indicators RED LIGHTS FUSE MAIN FUSE LINT LINT DOOR MAIN MAIN DOOR DRUM TUMBLER BASKET HI LIMIT SAIL SAIL SWITCH BURN BURNER HI LIMIT FLAME FLAME PROBE The L E D light emitting diode in the center of the board RED LIGHT indicates power supplied to the Phase 6 OPL microprocessor controller computer ...

Page 50: ...the drying cycle the cycle status portion of the L E D light emitting diode will display i e dRYLEVEL68 PcT The display will change and count upward until the percentage of extraction programmed is reached 2 Timed Manual Drying Cycle a While a cycle is in progress the cycle status time remaining and dRUM TEMPwill be displayed with PL5 FLASH active NFLASH active the ENTER START key must be pressed ...

Page 51: ...on below a HEAT INDICATOR this indicator dot is on whenever the Phase 6 OPL microprocessor controller computer is calling for the heating unit to be active on 4 Illustration No 4 refer to illustration below a ON INDICATOR this indicator dot is on whenever a cycle is in progress Additionally when the Anti Wrinkle Program is active this indicator dot will be on whenever the Phase 6 OPL microprocesso...

Page 52: ...IS OPEN ELAPSE TIME___MIN CYCLE DISPLAY TIME ELECTRIC SPECIFIC HEAT TYPE OF DRYER ELECTRICALLY HEATED F FABRIC TEMPERATURE ºFAR DEGREE IN FAHRENHEIT FLASH FLASH DISPLAY ACTIVE GAS SPECIFIC HEAT TYPE OF DRYER GAS HEATED HOT INDICATES AN OVERHEAT CONDITION LINT dOOR LINT DRAWER DOOR CIRCUIT IS OPEN OR FAULT IN THE A C SWITCH CIRCUIT LINT COUNT DRYING CYCLES RANGE FROM 1 10 CYCLES BEFORE CLEAN LINT D...

Page 53: ...ularmachine Thisnumberislocatedonthetopright hand corner of the diagram It is a six 6 digit number followed by a letter to distinguish the revision dates refertoillustration The wiring diagrams used in Troubleshooting are specifically for dryers manufactured at the time of publishing Your particular model may vary slightly depending on the date of manufacturing and options available The correct wi...

Page 54: ...r reverses but does not go forward blower motor runs 1 If computer dot first dot on the left does not come on replace the computer 2 Check for voltage across the coil of the forward contactor located in the rear panel box The contactor according to your diagram is marked CR2 The coil markings A1 and A2 If voltage is present there is a faulty wire s or termination s between BS2 and contactor coil C...

Page 55: ...blower motor replace the motor If there is no voltage at the blower motor problem is faulty wire s or termination s between the contactor and the motor 2 If there is no voltage present at A1 and A2 of the contactor check for voltage across the two 2 BS1 terminals of the arc suppressor A S board If there is voltage present at the two 2 BS1 terminals problem is faulty wire s or termination s between...

Page 56: ...place computer 1 Check voltage 24 VAC across 2 pin connector pin 3 and ground This connector is located at the lint drawer switch box If voltage is present problem is faulty wire s or termination s between computer pin 4 of 9 pin connector If no voltage is present check for voltage across the 9 pin modular connector nos 3 and ground If voltage is evident at both points problem is faulty computer H...

Page 57: ...d of your motor on the white lead of your temperature sensor At this point you should get no response from the meter infinite If you get a reading the temp sensor is defective 3 Reverse leads to temp sensor matching the black of the meter to the black wire of the temperature sensor and the red of the meter with the white wire of the temperature sensor At this point you should measure approximately...

Page 58: ...54 ºF 9 ºC 32 5 ºC 5 ºF 32 9 TEMPERATURE SENSOR CURRENT ºC ºK 273 15 MICROAMPS µA 1 000 000 ...

Page 59: ...nd high voltage rating Removing the cap reveals the wiring to the motor On each wire there is a number which corresponds to the numbers on the motor plate Depending on whether the dryer is operating on low voltage or high voltage the wiring should match the motor plate as follows The dots and lines represent connections refer to illustration For example On Low Voltage wire 14 is connected to wire ...

Page 60: ...cribes the size of the dryer and the type of heat gas or steam B Serial number The serial number allows ADC to gather information on your particular dryer C Manufacturing code number The manufacturing code number is a number issued by ADC which describes ALL possible options on your particular model D Type of heat Describes the type of heat gas natural or L P steam or electric E Heat input For gas...

Page 61: ...NOTE Place manometer in a position so that readings can be taken at eye level 4 Fill manometer with water as shown in illustration to the zero level 5 Start dryer With burner on take a reading a Read water level at the inner tube Readings should be taken at eye level b Correct readings should be NATURAL GAS 3 5 Inches W C L P GAS 10 5 Inches W C 6 If water column pressure is incorrect refer to TO ...

Page 62: ...ench 3 8 Socket Wrench 1 2 Socket or Open End Wrench 1 4 Open End Wrench 5 16 Socket or Open End Wrench 1 2 Socket Wrench 7 16 Socket or Open End Wrench 5 16 Nut Driver 12 Pipe Wrench 2 1 8 T Shaped or L Shaped Allen Wrench 3 16 T Shaped or L Shaped Allen Wrench Wire Cutters 1 2 Allen Wrench 3 8 Allen Wrench Channel Locks Manometer ADC P N 122804 MP Pin Extraction Tool ADC P N 122800 ...

Page 63: ...ADC 450410 1 02 22 00 25 ...

Search results

Summary of Contents for Phase 6 Microprocessor Controls ML-190HS

Reviews:

Related manuals for Phase 6 Microprocessor Controls ML-190HS

Brands by name

Popular brands

American Dryer Corp. Phase 6 Microprocessor Controls ML-190HS, Service Manual

Search results

Summary of Contents for Phase 6 Microprocessor Controls ML-190HS

Reviews:

Related manuals for Phase 6 Microprocessor Controls ML-190HS

Brands by name

Popular brands