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ECADDiagnosticGuide

Thedryerhasaninletportanoutletportandanunloaderport(whichsendairtothecom
Thespinoncartridgeappearsthesame(partnumbernotverifiedbyme)
Thepurgevalvelooksthesameasotherdryers(fromtheoutside)
Theheaterlooksthesame(fromtheoutside)andhasthesamefunctionandspec.
Theoutletcheckvalvelooksthesame(fromtheoutside)
ThereisnoturbocutͲoffvalve

Purgeunloadandregenerationareallcontrolledbythesolenoidpackonthesideofthedr
Roundconnectorwiththefollowingpinlocations:
24
31

Pin4=Ignitionpowerforbothsolenoids
Pin3=Groundcontrolsolenoidthatopensthepurgevalveandsendssystemairtoport4
Pin1=Groundcontrolsolenoidthenopenstheregenerationvalveallowingcontrolledout
Pin2=NotUsed

ResistanceSpecs.
Pin1toPin4:11Ͳ16ohms
Pin3toPin4:15Ͳ23ohms

ECADtroubleshooting:
1) Disconnectthedryerinlet(port1),signal(port4),andoutlet(port2)lines.
2) Disconnectthesolenoidelectricalconnector.
3) Connectshopairwithaclosedvalvetotheinlet.
4) Connectanairgaugeonthesignalline.
5) Connecta1gallonorlargerairtanktotheDryeroutlet.
6) Opentheinletvalvesupplyingshopairtothedryer,andverify:
a. Therearenoairleaksfromthedryer
b. Theairtankfillswithair
c. Thesignalgaugedoesnotmove
7) Closetheinletvalveandsupply12voltstopin4ofthesolenoidandgroundpin3t
a. Thedryerpurgesthenstopsleaking
b. Thesignalgaugerisestothetankpressure
8) Removethegroundfrompin3thenverify:
a. Thesignalgaugefallsto0PSI
9) Groundpin3andpin1ofthesolenoidconnector(12voltsonpin4stillinplace)a
a. Thetankdrainsthroughthepurgevalveslowly(desiccantregeneration)
10) Ifthedryerpassestheaboveteststhenthedryerisfunctioningcorrectly.Ifthedry
thenrecordresultsandcallOnTracat(866)668Ͳ7221.

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