American Dryer Corp MDG75V installation manual Dryer operates but is taking too long to dry

Page 45

b.Sail switch damper is not closing or is fluttering...

1)Lint screen is dirty.

2)Restriction in exhaust ductwork.

2.Fault in burner hi-limit circuit or tripped manual reset hi-limit.

3.Fault in lint chamber sensor bracket or tripped manual reset hi-heat protector thermostat.

4.Failed Direct Spark Ignition (DSI) module.

5.Failed DSI ignitor/flame-probe assembly.

6.Failed microprocessor controller (computer).

Q.Dryer operates but is taking too long to dry...

1.Exhaust ductwork run too long or is undersized...back pressure must be no less than 0 and must not exceed 0.3 inches (0.75 mb) of water column (W.C.).

2.Restriction in exhaust ductwork...

a.Exhaust back draft damper is sticking partially closed.

b.Restriction in ductwork...check ductwork from dryer ALL the way to the outdoors.

3.Low and/or inconsistent gas pressure (for gas models only).

4.Insufficient make-up air.

5.Poor air/gas mixture at burner...yellow or poor flame pattern; adjust gas burner air adjustment shutters (for gas models only).

6.Lint screen is not being cleaned on a regular basis or often enough.

7.Extractors (washers) are not performing properly.

8.Sail switch is fluttering...restriction in exhaust ductwork (for gas models only).

9.Failed microprocessor controller (computer)...temperature calibration is inaccurate.

10.Failed microprocessor temperature sensor...calibration is inaccurate.

R.Condensation on main door glass...

1.Too long, undersized, or improperly installed ductwork.

2.Back draft damper is sticking in partially closed position.

41

Image 45
Contents MDG75V Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Section Procedure for Functional Check of Replacement Receiving and Handling Important InformationWhat to do if YOU Smell GAS Safety PrecautionsPage Specifications SpecificationsMDG75V Component Identification Page Location Requirements Installation ProceduresUNPACKING/SETTING UP Dryer Enclosure Requirements Fresh AIR Supply Requirements General Exhaust Ductwork Information Exhaust RequirementsPage Page Multiple common Dryer Venting Importantventingreminders Electrical Requirements Electrical InformationMust be Provided SINGLE-PHASE 1Ø Electrical Connections Leads Important a Circuit Servicing Each Dryer Must be Provided Page MDG75V GAS GAS Information Type of GAS Page Page Preparation for OPERATION/START-UP GAS Models only Preoperational TestsBasket Tumbler Coating Shutdown Instructions Preoperational InstructionsSERVICE/PARTS Information ServiceParts Routine Maintenance CleaningSuggested Cleaning Schedule Lubrication AdjustmentsLint Drawer Removal Microprocessor Controller Computer Models TroubleshootingBlower motor is not operating does not start Microprocessor controller computer display reads dSFL GAS Models only Dryer operates but is taking too long to dry Dryer is making scraping noise at basket tumbler area Data Label Data Label InformationSerial Number Sectionviii Procedure for Functional Check Replacement ComponentsPage 113160 1 11/27/02-25