Thermostats | American Dryer Corp ML-145, ML-170 manual

5.Remove the screws securing the burner tube rest to the oven and remove this rest.

6.Remove screws securing the flame probe, and HSI Ignitor burner box cover plate to the oven.

7.Remove burner tubes by sliding them out.

8.Replace by reversing procedure.

WARNING: Test ALL connections for leaks by brushing on a soapy water solution.

WARNING: NEVER TEST FOR LEAKS WITH A FLAME!!!

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. Reestablish electrical power to the dryer.

C. THERMOSTATS

To Replace Burner Hi-Limit Thermostat (Gas Models Only)

This thermostat is an important safety device serving as an added protection against failure of the airflow (sail switch) to open in the event of motor failure or reduced airflow condition.

IMPORTANT: UNDER NO CIRCUMSTANCES should heat circuit safety devices ever be disabled.

1. Discontinue electrical power to the dryer.

2. Disconnect wires from hi-limit thermostat.

3. Remove screw, washer, and nuts securing thermostat to the bracket. Remove thermostat.

4. Reversing procedure for installing new thermostat.

5. Reestablish electrical power to the dryer.

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American Dryer Corp ML-145, ML-170 service manual To Replace HSI Hot Surface Ignition Module, Thermostats

Contents

American Dryer Corporation ML-145 / ML-170 Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Content Section Technical Information Important Information Safety Precautions Standards Cleaning Routine Maintenance Lubrication Adjustments ENCLOSURE, AIR SUPPLY, and Exhaust Requirements Installation RequirementsElectrical and GAS Requirements Operational Service Check Procedure Gas 10.5 inches water column 26.1 mb Control Panel Microprocessor Description of PartsControl Panel NON-MICROPROCESSOR Control BOX HSI HOT Surface Ignition Module GAS Burner AssemblyGas Models only Drive Motor Blower Motor and Impellor GAS and Steam Idler AssemblyTumbler Basket Bearing and Pulley Arrangement Sail Switch Gas Models only Main Door SwitchTumbler Basket HI-LIMIT Gas Models only Automatic Reset ThermostatLint Drawer Temperature Sensor Bracket NON-COMPUTER Lint Drawer SwitchSteam Damper System Compressed AIR Requirements Introduction ServicingComputer Controls To Replace Computer To Replace Microprocessor Temperature Sensor Probe To Replace Keyboard Touchpad Label Assembly Ignition Controls To Remove Flame Probe AssemblyTo Replace Gas Valve Refer to above burner illustration To Replace Main Burner Orifices To Test and Adjust Gas Water Column Pressure To Replace Burner Tubes To Convert from Natural Gas to L.P. Gas Thermostats To Replace HSI Hot Surface Ignition ModuleTo Replace Burner Hi-Limit Thermostat Gas Models Only To Replace Sail Switch Sail Switch Assembly Gas Models only To Replace Main Door Assembly To Adjust Sail Switch To Replace Front Panel To Install New Main Door Glass Pulleys To Replace Main Door Hinge BlocksTo Replace Tumbler Basket Pulley To Replace Large Idler Pulley To Replace Small Idler Pulley Tumbler Basket Alignment Vertical Up and Down Adjustment Tumbler Basket AssemblyTo Replace Motor Pulley To Replace Tumbler Basket or Tumbler Basket Support Tumbler Basket Alignment Lateral Side to Side Adjustment Important Never strike the shaft directly with a hammer To Replace Front Idler Shaft Pillow Block Bearing To Replace Front Tumbler Basket Support Pillow Block Bearing To Replace Rear Idler Shaft Pillow Block Bearing Belt Tension Adjustment Tumbler Basket to IdlerBelts Refer to illustrations in section F Pulleys To Replace V-Belts Belt Tension Adjustment Motor to IdlerMotors To Replace Drive Motor Impellor To Replace Lint Drawer Switch Lint Drawer Assembly To Replace Lint Screen Computer will not accept keyboard touchpad entries Troubleshooting Display is reading no Airflow Display is reading Rotation Sensor Fail Display is reading Drum Safety Fail Display is reading Sail Switch FailDisplay is reading Burner Safety Fail Display is reading No Heat Display is reading Burner Flame Failure Display is reading Burner Control FailureDisplay is reading Main Door Display is reading Lint Door Dryer operates but is taking too long to dry Display is reading HotThermal overload for drive motor is tripping There is excessive vibration coming from the tumbler basket Overload for impellor fan motor is tripping Electrical Troubleshooting Diagnostic L.E.D. light emitting diode Display Failure Codes Phase 6 OPL System DiagnosticsPage E.D. Display Indicator Number E.D. light emitting diode Display Indicators E.D. Display Indicator Number AIR AIR JET Output L.E.D. Indicator Optional FAN Blower Output L.E.D. light emitting diode IndicatorHT1 Heat Output L.E.D. Indicator Lint Lint Door Input L.E.D. Indicator Fuse Main Fuse Input L.E.D. IndicatorMain Main Door Input L.E.D. Indicator Drum Tumbler Basket HI-LIMIT Input L.E.D. Indicator Power Supply Input L.E.D. Indicator Flame bURNER Control Fail Input L.E.D. Indicator E.D. Display Operating Status D. DISPLAY/CODES Phase 6 OPL Microprocessor L.E.D. Displays ALL REV E.D. Codes 1. Display Codes GAS/ELECTRIC only BURNER/OVEN Open HI-LIMIT Circuit GAS Models only Power 24 VAC is not Evident AT GAS ValveGAS only Ignition Attempt Failure Computer Logic and Wiring Diagram No Display Condition Blower motor does not operate, drive motor runs No Heat Drive and Blower Motors Run Steam Models No Heat Drive and Blower Motors Run Gas Models Door Condition Motor Plate High and LOW Voltage Technical Information Information on the Data Label Data Label How to Use a Manometer Using a Manometer ML-170 Tool List ADC 450429 1- 02/18/00-25