American Dryer Corp MDG-30 Microprocessor controller computer display reads door

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a.Failed microprocessor temperature sensor.

b.Failed microprocessor controller (computer).

c.Broken wire or connection somewhere between the microprocessor controller (computer) and the microprocessor temperature sensor.

H.Microprocessor controller (computer) display reads “door”...

1.Fault (open circuit) in door switch circuit...

a.Failed main door switch.

b.Broken connection or wire in main door circuit.

2.Failed 24 VAC transformer.

I.Microprocessor controller (computer) will not accept any keyboard (touch pad) entries, i.e. light emitting diode (L.E.D.) display reads “FILL” and when the keyboard (touch pad) entries are selected, the L.E.D. display continues to read “FILL”...

1.Failed keyboard (touch pad) label assembly.

2.Failed microprocessor controller (computer).

J.Microprocessor controller (computer) will only accept certain keyboard (touch pad) entries...

1.Failed keyboard (touch pad) label assembly.

2.Failed microprocessor controller (computer).

K.Microprocessor controller (computer) locks up and L.E.D. display reads erroneous message or only partial segments...

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

a.Failed microprocessor controller (computer).

b.Failed keyboard (touch pad) label assembly.

L.Dryer stops during a cycle and L.E.D. 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).

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

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Contents MDG-30 Coin Installation Manual Retain This Manual In a Safe Place For Future Reference Foryour Safety Page Table of Contents Section Procedure for Functional Check of Replacement Important Information Receiving and HandlingSafety Precautions What to do if YOU Smell GASPage Specifications SpecificationsSpecifications GAS only Installation Procedures Unpacking and Setting UPLocation Requirements Dryer Enclosure Requirements Fresh AIR Supply Requirements Exhaust Requirements Single Dryer Venting Vertical Venting Multiple Dryer Common Venting Illus. D Importantventingreminders Electrical Information Electrical RequirementsMust be Provided Single-Phase 1ø Electrical Connections Leads GAS 120GAS Information Kcal/hr Rating22,680 This Pipe Size Requirement Page Preparation for Operation and START-UP Preoperational Tests Preoperational Instructions Basket Tumbler CoatingPage Select Temperature Shutdown Instructions SERVICE/PARTS Information ServiceParts Warranty Information Returning Warranty CardsWarranty Routine Maintenance CleaningSuggested Cleaning Schedule Adjustments LubricationTroubleshooting No light emitting diode L.E.D. displayDrive motor is not operating does not start Blower motor is not operating does not start Microprocessor controller computer display reads dSFLMicroprocessor controller computer display reads door No heat, ignitor sparks, burner goes on and off right awayDryer operates but is taking too long to dry Condensation on main door glass Dryer is making scraping noise at basket tumbler areaExcessive noise or vibration Heating unit is not operating all temperature selections Main burners are burning with a yellow flameDryer operates but is taking too long to dry load Dryer is cycling on hi-limit thermostat Datalabel Information Data LabelSerial Number Procedure for Functional Check Replacement Components Page Page Burner Manual Reset HI-LIMIT Instructions 12/15/99-150