ADC 450428 Sail Switch Gas and Electric Models Only, HI-LIMIT Gas and Electric Models Only

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J. SAIL SWITCH (Gas and Electric Models Only)

The sail switch is located on the front of the burner box for gas dryers on the right side of the oven assembly for electric dryers. A sail switch consists of a round damper plate on a lever arm which is in contact with an electric switch. When the air blower comes on, it draws air through the gas or electric burner. This creates a negative pressure inside 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 coming on. 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.

K. HI-LIMIT (Gas and Electric Models Only)

A hi-limit thermostat is located at the burner. This is an manual reset disc-type thermostat set at 330º F (166º C) for gas dryers and at 290º F (143º C) for electric dryers. If the flame in the burner should get too hot, this thermostat will shut off the burner. This is generally caused by low airflow through the dryer.

L. MANUAL RESET THERMOSTAT

This is located inside the dryer in the lint compartment above the lint screen. This thermostat senses the heated air after it passes through the tumbler (basket). If the air temperature gets too hot, the thermostat will shut off the burner. The dryer will not run until the air temperature cools down. At this time, the manual reset thermostat must be reset manually or the 24 VAC burner circuit will never be completed. Tumbler (Basket) and blower will run but the dryer will not heat. If the temperature sensor opens the display will read “TEMP SENSOR FAIL CHECK TEMP SENSOR FUSE” with an audio indication. If the thermostat opens the display will read “dRUM SAFETY FAIL” with an audio indication.

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Contents American Dryer Corporation ML-130Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Content Phase 6 OPL System Diagnostics Important Information Safety PrecautionsStandards MATERIALS, GASOLINE, and Their Flammable Vapors Routine MaintenanceCleaning Lubrication AdjustmentsElectrical and GAS Requirements Installation RequirementsENCLOSURE, AIR SUPPLY, and Exhaust Requirements Operational Service Check Procedure Page Control BOX Description of PartsDrive Motor HSI HOT Surface Ignition Module Gas Models OnlyBlower Motor and Impellor GAS Burner AssemblyIdler Assembly Tumbler Basket Main Door SwitchTumbler Basket Bearing and Pulley Arrangement HI-LIMIT Gas and Electric Models Only Sail Switch Gas and Electric Models OnlyManual Reset Thermostat Steam Damper System Lint Drawer SwitchLint Drawer Introduction ServicingComputer Controls To Replace Computer Control PanelTo Replace Computer To Replace Keyboard Touchpad Label AssemblyTo Replace Microprocessor Temperature Sensor Probe To Remove Hot Surface Ignitor refer to illustration above Ignition ControlsHSI Ignitor Flame Sensor Probe To Remove Flame Sensor ProbeTo Replace Main Burner Orifices To Test and Adjust Gas Water Column PressureTo Convert from Natural Gas to L.P. Gas Thermostats To Replace Burner TubesTo Replace HSI Hot Surface Ignition Module Page To Replace Sail Switch Sail Switch Assembly Gas and Electric Models OnlyTo Adjust Sail Switch Personal Injury or Fire could ResultTo Install New Main Door Glass To Replace Main Door AssemblyTo Replace Main Door Hinge Block To Replace Front PanelTo Replace Small Idler Pulley PulleysTo Replace Tumbler Basket Pulley To Replace Motor Pulley To Replace Large Idler PulleyTumbler Basket Alignment Vertical Up and Down Adjustment Tumbler Basket AssemblyTo Replace Tumbler Basket or Tumbler Basket Support Tumbler Basket Alignment Lateral Side to Side AdjustmentTo Replace Front Tumbler Basket Support Pillow Block Bearing To Replace Rear Idler Shaft Pillow Block Bearing To Replace Front Idler Shaft Pillow Block BearingBelt Tension Adjustment Motor to Idler Belt Tension Adjustment Tumbler Basket to IdlerBelts To Replace V-BeltsTo Replace Impellor Motor Fan Shaft Drive MotorsTo Replace Drive Motor Impellor Lint Drawer Assembly To Replace Lint ScreenTo Replace Lint Drawer Switch Computer will not accept keyboard touchpad entries TroubleshootingNo display on computer Dryer operates but is taking too long to dry Dryer will not start, but computer display indicators are onOverload for impellor fan motor is tripping Burner hi-limit safety thermostat is trippingThermal overload for drive motor is tripping There is excessive vibration coming from the tumbler basket 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 IndicatorsE.D. Display Indicator Number HT1 Heat Output L.E.D. Indicator FAN Blower Output L.E.D. IndicatorAIR AIR JET Output L.E.D. Indicator Optional Main Main Door Input L.E.D. Indicator Fuse Main Fuse Input L.E.D. IndicatorLint Lint Door Input L.E.D. Indicator Power Supply Input L.E.D. Indicator Flame bURNER Control Fail Input L.E.D. IndicatorALL REV E.D. Codes 1. Display CodesGAS only Ignition Attempt Failure GAS Models only Power 24 VAC is not Evident AT GAS ValveGAS/ELECTRIC only BURNER/OVEN Open HI-LIMIT Circuit Computer Logic and Wiring Diagram Page Drive motor reverses but does not forward, blower motor runs No Display ConditionLint Door Condition Blower motor does not operate, drive motor runsMicroprocessor Computer Main Door ConditionFor Phase 6 Models Manual Reset HI-LIMIT InstructionsMotor Plate High and LOW Voltage Technical InformationInformation on the Data Label Data LabelHOW to USE a Manometer Tool List ADC450428 1- 02/22/00-25