American Dryer Corp MDG-50 No heat, ignitor sparks, burner goes on and off right away

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M.Microprocessor controller (computer) locks up and L.E.D. (light emitting diode) display reads erroneous messages or only partial segments

1.Transient power voltage (spikes), disconnect power to dryer, wait one (1) minute, and reestablish power to dryer. If problem is still evident.

a.Failed microprocessor controller (computer).

b.Failed keyboard label (touch pad) assembly.

N.Dryer stops during a cycle and L.E.D. (light emitting diode) display returns to "FILL"

1.Fault in microprocessor heat sensor circuit.

a.Loose connection in wires between temperature sensor and microprocessor controller (computer).

2.Loose connection somewhere in main power circuit to microprocessor controller (computer).

O.Gas heating unit is not operating (no heat), no spark at burner area when dryer is first started, and heat indicator is on

1.Fault in sail switch circuit

a.Sail switch is out if adjustment or had failed.

b.Sail switch damper is not closing or is fluttering

1.Lint screen is dirty.

2.Restriction in exhaust.

2.Fault in burner hi-limit circuit or thermostat.

3.Fault in lint chamber sensor bracket hi-heat protector thermostat.

4.Failed Direct Spark Ignition (DSI) module.

5.Failed DSI (Direct Spark Ignition) ignitor and flame probe assembly.

6.Failed microprocessor controller (computer).

P.No heat, ignitor sparks, burner goes on and off right away

1.DSI (Direct Spark Ignition) ignitor or flame-probe out of adjustment, reposition closer to the flame area.

2.Sail switch is fluttering

a.Lint screen dirty.

b.Restriction in exhaust duct work.

3.Insufficient makeup air.

4.Failed ignitor and flame-probe assembly.

5.Failed Direct Spark Ignition (DSI) module.

6.Failed gas valve.

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Contents MDG-50 Installation Manual Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Section Routine Maintenance Section Important InformationSafety Precautions Personal Injury or Fire could ResultPage Specifications SpecificationsSpecifications Installation Procedures Unpacking and Setting UPLocation Requirements Dryer Enclosure Requirements Fresh AIR Supply Exhaust Requirements Single Dryer Venting Illus. B Multiple Dryer Common Venting ILLUS. D Importantventingreminders Electrical Information Electrical RequirementsMust be Provided Odfn Klwh Uhhq Important a Circuit Serving Each Dryer Must be Provided DG-50 GAS GAS Information Injury and Improper Operation of the DryerType of GAS Page Page Preparation for Operation and START-UP Preoperational Tests Preoperational Instructions Page OPL Models Shut Down Instructions Service PartsReturning Warranty Cards SectionRoutine Maintenance CleaningAdjustments LubricationDrive motor not operating does not start TroubleshootingNo L.E.D. light emitting diode display Blower motor not operating does not start Microprocessor computer display reads dSFL Microprocessor controller computer display reads doorNo heat, ignitor sparks, burner goes on and off right away Dryer operates but is taking too long to dry Condensation on main door glass Dryer or scraping noise at basket tumbler areaDrive motor only not operating Excessive noise or vibrationMain burners are burning with a yellow flame Dryer operates but is taking too long to dry load Heating unit not operating ALL temperature selectionsBlower motor only not operating Dryer is cycling on hi-limit thermostat Technical Information Data LabelSerial Number Reversing Timer SPIN/DWELL Adjustments Timing LegendProcedure for Functional Check Replacement Components Direct Spark Ignition DSI System 10/30/00-150
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